Date   

3560 Crystals from eBay

Jim Sheldon
 

I ordered a 10 pack of 3560 crystals (HC/49 style) from 3rd Planet Solar
on eBay. Got them yesterday and finally had a chance to check them out.
NONE will oscillate in the Cricket. The crystals aren't bad (they
oscillate & check good in my crystal checker) they just won't run in the
Cricket. I don't know if it's a feedback problem that needs a component
change or if it's just that there's not enough drive. They will
sometimes try to start and once in a while one of them would run in RX
mode but as soon as you hit the key to transmit (good 50 ohm dummy load
attached). The crystal would stop oscillating and it would be necessary
to cycle power to shock it back into oscillation. Maybe Dave, NM0S
would chime in on this since I'm not an engineer and don't know for sure
which component values to change in an attempt to make these crystals
work.

Jim - W0EB


Re: Hyper-Cricket at 12 volts?

Kenneth Ketner
 

Greetings:
Thanks for the reply.

Gottacricket. Finished it yesterday. As promised, got .7 watt out directly on my official Oak Hills qrp wattmeter at first smoke test. It retains smoke. Nice sidetone but had  clunk on key release. Will research same. I am running my straight key into the adapter. Got RX noise, but no-one about at the ColorBust frequency just then.

I wanted to ask the experts about 12 volts before trying it. Fried cricket is not appetizing. So I will try more juice, maybe try the resistor change. I would prefer a whole watt if possible.

Wouldn't the cricket be as joyful at 1 watt as it is at .7?
1 is the master number. 1 + 1 is 2, 2 + 1 is 3. 1/2 is a number, 23/32 is some kinda number....   Therefore, 1 is important, numberwise.

73
Ken Ketner
ARS KA5ELD
ARRL, RSGB, G-QRP
PO Box 65135, Lubbock, Texas 79464-5135

On May 04, 2017, at 08:17 AM, WA0ITP wrote:

GM Ken,  Yabut (always one of those isnt there).

W0EB just posted a coupla days ago that he found very little difference in output power from 9 to 12 increase.  Maybe Jim will chime in here.

The designer, NM0S, in a private email to me when I asked abt 12 volts,
said that R6 would need to be changed to 150k or 220k. I was thinking abt the convenience of using a 3 cell LiPo, and having loong battery life.  Haven't done that yet.

Sure it could be redesigned for more power, VFO, more sensitivity, etc.  But then it would be a whole new rig and not a Cricket anymore.  Dave designed it as an inexpensive, minimalist, and fun entry level rig.

btw Ken, do you own a Cricket yet?  They're great fun.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/3/2017 10:41 PM, Kenneth Ketner klaine@... [4sqrp] wrote:
 
Will the little chirper take 12 volts for a bit more output? 

I recently saw a circuit, Tayloe simple tx at Hendricks kits, that got 4 watts on 3 parallel bs170 s.

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135
Sent from my iPad


Re: Hyper-Cricket at 12 volts?

Jim, N5IB
 

Consider this doodad for providing 9V to your Cricket
follow the "Current Limiter" link at

http://n5ib.net/Index.xht

Easy perfboard or DIY PC board.
Has the extra feature of adjustable current limiting to keep the smoke in.

N5IB




---In 4sqrp@..., <jonigro@...> wrote :

As someone mentioned, the main reason for making the Cricket work on 12
volts is just to have it run in the shack without wasting 9 volt
batteries. My suggestion is to build a simple 9 volt regulator that has
a snap connector on the output and a powerpole (or whatever) on the
input. There would be no mods made to the Cricket and, when desired, a
12 volt power supply could be used to power it. All the parts
(regulator and a couple of capacitors) would easily fit into a 35 mm
film can (remember them?) or a small pillbox. With the current levels
we are talking about, no heat sinks would be required.
72,
John, AA0VE


Re: Cricket Parts Alert

Curt
 

I was missing a spacer.  Not sure how to send a message to just the poster.  72, Curt KB5JO


Re: Hyper-Cricket at 12 volts?

Curt
 

Possibly the drive level of the prior stage could be in play.  12 volts can allow higher power output, but there has to be enough drive level.  when there is enough drive (via an extra NPN transistor maybe) - then one can question if the 2N7000 can safely provide the dissipation.  using a BS170, perhaps again the drive level is in question. 

As I shared earlier, a companion board with VFO and an audio filter would be useful and easy, but more output power impacts the Cricket too much for most builders - and a 2X power increase isn't that noticed being about 1/2 an S-unit.  But with care one could home-brew a hyper cricket. 

One more thought - KC9ON may still sell multi-crystal boards that were intended for a Pixie - that may work fine with the Cricket.  Most shacks likely already have an audio filter (I did not ask Terry if he was using one when we QSO'ed half-way across NA. 

73 CUL

Curt


Re: Hyper-Cricket at 12 volts?

John Lonigro
 

As someone mentioned, the main reason for making the Cricket work on 12 volts is just to have it run in the shack without wasting 9 volt batteries. My suggestion is to build a simple 9 volt regulator that has a snap connector on the output and a powerpole (or whatever) on the input. There would be no mods made to the Cricket and, when desired, a 12 volt power supply could be used to power it. All the parts (regulator and a couple of capacitors) would easily fit into a 35 mm film can (remember them?) or a small pillbox. With the current levels we are talking about, no heat sinks would be required.

72,

John, AA0VE

On 05/04/2017 09:44 AM, bob.groh@gmail.com [4sqrp] wrote:

The answer is 'maybe' but it brings up the question 'why???'. The Cricket is what it is - a fun little, uncomplicated CW rig. I personally figure on leaving it the way it is. You know, somewhat before we start talking about 'overshoes' and the like. Although a nice power amp with maybe 20 dB of gain would certainly do a bit to help the 'power urge' - 1 watt in, 100 watts out. Boy, wouldn't my neighbors like that! Not exactly QRP of course either.


73 and grins
Bob Groh, WA2CKY


Re: Hyper-Cricket at 12 volts?

wa2cky
 

The answer is 'maybe' but it brings up the question 'why???'.  The Cricket is what it is - a fun little, uncomplicated CW rig.  I personally figure on leaving it the way it is.  You know, somewhat before we start talking about 'overshoes' and the like.  Although a nice power amp with maybe 20 dB of gain would certainly do a bit to help the 'power urge' - 1 watt in, 100 watts out.  Boy, wouldn't my neighbors like that!  Not exactly QRP of course either. 

73 and grins
Bob Groh, WA2CKY


Cricket Parts Alert

gary Lyons
 

I've received recent reports that at least some kits were shipped with one part missing: only 1 small aluminum spacer vs the 2 required.

I've been packaging kits in batches of 25 with individual inventories for each kit. However, it appears that some kits were missing that one part (and I've discovered the root cause). Unfortunately, I do not know how many kits were affected.

If you are one of the unfortunate kitters missing the part please contact me and I will mail it to you the same day. The email address, and my call, are on the Cricket kit page and my signature line below

72,
Gary/w0gx
CricketMaster
4sqrpcricket@...





Re: Hyper-Cricket at 12 volts?

WA0ITP
 

GM Ken,  Yabut (always one of those isnt there).

W0EB just posted a coupla days ago that he found very little difference in output power from 9 to 12 increase.  Maybe Jim will chime in here.

The designer, NM0S, in a private email to me when I asked abt 12 volts, said that R6 would need to be changed to 150k or 220k. I was thinking abt the convenience of using a 3 cell LiPo, and having loong battery life.  Haven't done that yet.

Sure it could be redesigned for more power, VFO, more sensitivity, etc.  But then it would be a whole new rig and not a Cricket anymore.  Dave designed it as an inexpensive, minimalist, and fun entry level rig.

btw Ken, do you own a Cricket yet?  They're great fun.
72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
On 5/3/2017 10:41 PM, Kenneth Ketner klaine@... [4sqrp] wrote:

 
Will the little chirper take 12 volts for a bit more output? 

I recently saw a circuit, Tayloe simple tx at Hendricks kits, that got 4 watts on 3 parallel bs170 s.

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135
Sent from my iPad


Re: Hyper-Cricket at 12 volts?2

Mike WA8BXN
 

I wonder if its a problem in the biasing of Q2. I assume the current draw went up a lot at 12 V causing the heating. I suspect it was not just the slight increase in power. The problem I see may be not so much someone trying to get more power output when using 12 (or 14) V in place of the 9 V battery but just not wanting to use (or having handy) a good 9 V battery. 

To be able to use 12 - 14 volts with the rig I would consider one of several methods. Changing the biasing (R6/R3) would perhaps work, but then if used at 9 V power out may be very low. One might try using a 9 volt regulator (7809) to power the whole rig from the higher voltage. Or one might try connecting R6 to regulated 9 V (zener circuit or real regulator) instead of the keyed 9 V line.

73/72 - Mike WA8BXN


Re: Hyper-Cricket at 12 volts?2

Jim Sheldon
 

I tested that yesterday on mine.  The answer is everything in the RX works fine on 12 volts.  The transmitter is a different story.  The PA transistor, Q2, heats up very rapidly and I don't think it will last through a normal QSO.  The power output does not increase by enough to make any real difference so the overall answer is NO it ain't gonna work on 12 volts.  After sending CQ CQ CQ de W0EB W0EB W0EB K once using 12 volts, Q2 was so hot it would blister your finger if you weren't careful touching it.  Voltage per power out with a 2N7000 at Q2 - 9.5 volts, .75 watts, 10 volts .80 watts, 11 volts .89 watts and at 12 volts it was .9 to 1.0 watts out.  Swapped Q2 to a BS170 and got identical results (less than .02 watt difference) so there is really nothing to be gained by running the Cricket on 12 volts except de-soldering/soldering practice when replacing Q2 every time it failed.

Jim, W0EB

------ Original Message ------
From: "Kenneth Ketner klaine@... [4sqrp]" <4sqrp@...>
Sent: 5/3/2017 10:41:54 PM
Subject: [4sqrp] Hyper-Cricket at 12 volts?

Will the little chirper take 12 volts for a bit more output? 

I recently saw a circuit, Tayloe simple tx at Hendricks kits, that got 4 watts on 3 parallel bs170 s.

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135
Sent from my iPad


Re: Tonight's 40m net

weaselradio1@yahoo.com <weaselradio1@...>
 

Oh well, maybe I can get on the net next time. At least I could hear the net this week. 


Hyper-Cricket at 12 volts?

Kenneth Ketner
 

Will the little chirper take 12 volts for a bit more output? 

I recently saw a circuit, Tayloe simple tx at Hendricks kits, that got 4 watts on 3 parallel bs170 s.

Ken Ketner
KA5ELD
PO Box 65135
Lubbock, TX 79464-5135
Sent from my iPad


Re: A simple PVC PIPE audio filter for the Cricket

Sam Neal
 

Hello,

I made it's el-cheapo little brother ( some old issue of Popular Electronics )
out of a Pringles potato chip can and the speaker out of an old CB radio. That
sounded very good, so I can imagine that it's big brother from QST will be
much better.

73,

Sam Neal N5AF
Celebrating 60 Years In Amateur Radio
_______________________________________________________

------ Original Message ------
Received: Wed, 03 May 2017 05:36:31 PM CDT
From: "Charles Moizeau w2sh@msn.com [4sqrp]" <4sqrp@yahoogroups.com>
To: "4sqrp@yahoogroups.com" <4sqrp@yahoogroups.com>, "wa0itp@mchsi.com"
<wa0itp@mchsi.com>
Subject: Re: [4sqrp] A simple PVC PIPE audio filter for the Cricket

By all means have a look at the February 2017 issue of QST, pages 43-45, "A
Resonant Speaker for CW", for good ideas and a nicely crafted result.


72,


Charles, W2SH



From: 4sqrp@yahoogroups.com <4sqrp@yahoogroups.com> on behalf of WA0ITP
wa0itp@mchsi.com [4sqrp] <4sqrp@yahoogroups.com>

Sent: Wednesday, May 3, 2017 3:10 PM
To: 4sqrp@yahoogroups.com; Charles Powell; Walter - K5EST
Subject: Re: [4sqrp] A simple PVC PIPE audio filter for the Cricket



Lets build one!

A hunk of pvc pipe works very well, and is plenty stiff enough. I built one
some years back, and if I could find it, I'd use it. The volume of the pipe
doesn't matter, only the length, so I'll let the size of the junk box speaker
dictate the diameter of the pipe. Easy calculation too, length of
pipe=1100/2f. Think I'll build one specifically for the Cricket, but it will
need a little outboard amp (tape it to the filter) to drive the speaker. This
thing could be built similar to a trombone, so I may include a sliding insert
(or an outside tube) that changes the resonant freq from abt 800 cycles (8.5")
down to 400cycles (16.5"). It will work for any rig that will drive a
speaker.

I'm off to the junque box to find a speaker, anyone else want to build one
too? Anyone have some good construction hints?

72 WAØITP
I love this radio stuff.
www.wa0itp.com<http://www.wa0itp.com>
www.4sqrp.com<http://www.4sqrp.com>

[http://www.wa0itp.com/w8dizcntr2.jpg]<http://www.wa0itp.com/>

WAŘITP Home - Promoting QRP operating and
Construction.<http://www.wa0itp.com/>
www.wa0itp.com
Welcome To WAØITP's Ham Radio Web Site Promoting QRP operating and
Construction. Pacific Mountain Central Eastern GMT

On 5/3/2017 12:44 PM, Charles Powell
doctorcwp@yahoo.com<mailto:doctorcwp@yahoo.com> [4sqrp] wrote:


I had forgotten about this. I made one years ago when I first started in
radio, and used it with my FT-101EE. As i recall, it worked quite well and
the video bears this out. I have a boatload of small speakers around here
somewhere. I made a tuned speaker from PVC that also works very well - almost
as well as the filters on my K2.

72,

Charles
NK8O

On May 3, 2017, at 12:34 PM, Walter - K5EST
walter.k5est@gmail.com<mailto:walter.k5est@gmail.com> [4sqrp]
<4sqrp@yahoogroups.com<mailto:4sqrp@yahoogroups.com>> wrote:


Keeping in the minimalist fashion, my old friend the Red Solo Cup Resonance CW
filter does a great job at nearly no expense. The design has been around for a
long time. The URL is to a U-Tube video.

https://www.youtube.com/watch?v=XN8FUr0m1Po

or if can get away with a scavenger hunt in the kitchen.....

https://www.youtube.com/watch?v=2_giOx8SNnY&t=134s

Happy CWing........de... Walter - K5EST


Re: Post OzarkCon kit idea

Johnny AC0BQ
 

Hmm 
Interesting idea Dave!
I love the original test set that the group sold.
It's on the bench and gets used often.
72
Johnny AC0BQ 

On Wed, May 3, 2017 at 7:27 PM David Martin davemrtn@... [4sqrp] <4sqrp@...> wrote:
 

At OzarkCon someone mentioned a new version of the HF Test Set as a new 4SQRP Kit.

Maybe this new version HF Test Set could include a sweep Generator ??  Along with HF frequencies, it would be nice if it included some lower frequencies, like 455KHz, to aid in sweeping/testing crystal/mechanical/ceramic filters.


--
David Martin - NA1MH - Mountain Home, Ar. -----------------------------------------
Everybody complains about CO2, but nobody complains about all
the trees cut down to build Highways and Cities.

--
Check out the 4SQRP website at 4sqrp.com


Re: Tonight's 40m net

Sam Neal
 

Hello All,

Mr. Lightening Storm parked right over my house and irrigated north Liberty
County Texas during net time.

It was so bad, the satellite TV signals couldn't get through it. Maybe next
week.

73,

Sam Neal N5AF
Celebrating 60 Years In Amateur Radio
____________________________________________________________________

------ Original Message ------
Received: Wed, 03 May 2017 08:56:44 PM CDT
From: "'AG1P Ron' ag1p@earthlink.net [4sqrp]" <4sqrp@yahoogroups.com>
To: <4sqrp@yahoogroups.com>, <wayne.dillon@gmail.com>
Subject: RE: [4sqrp] Tonight's 40m net

No joy here in Oregon but at least noise levels are down since storms finally
decided to move east.



72 - Ron - AG1P



From: 4sqrp@yahoogroups.com [mailto:4sqrp@yahoogroups.com]
Sent: Wednesday, May 03, 2017 5:55 PM
To: 4sqrp@yahoogroups.com
Subject: [4sqrp] Tonight's 40m net





GE all,

Condx were bad, just made out WA9PWP and K4EQ who got honest reports when they
appeared in between the static crashes. There was one other but I just
couldn't copy, got the occasional 2 but nothing else. Was that you Chas?

Maybe better next week and hopefully Paul will have better luck on 80m
shortly.

Be blessed all de Wayne - NQ0RP



--



QRP - EFFICIENCY AND SKILL, NOT POWER.



I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.


God Bless from Wayne Dillon - NQ0RP


Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17



http://www.4sqrp.com/index.php

NAQCC MWN NCS

NAQCC Net manager

NAQCC # 0759

Membership Chairman - 4SQRP Group

4SQRP 40m NCS
4SQRP #95

FISTS 17184

FPQRP #342 (Flying Pigs QRP Club)

G-QRP-11504

QRP-ARCI #11505
SKCC #1155T

SOC #848
30MDG#1176

NEQRP #693

GORC #192

DMC (Digital Modes Club) # 06686

Zombie# 1186


Re: Nets

w2sh@...
 

Yup Terry,


I listened to you working AE5KA and called you promptly after you'd both hung up.  He was 589/599 here (you gave him 339), and you were a steady 559 here.


Called you a couple of time, but no luck.


72,


Charles, W2SH




From: 4sqrp@... <4sqrp@...> on behalf of WA0ITP wa0itp@... [4sqrp] <4sqrp@...>
Sent: Wednesday, May 3, 2017 9:27 PM
To: 4sqrp@...; Paul Smith; NQ0RP Wayne Dillon
Subject: [4sqrp] Nets
 
 

Thanks for trying guys, it is appreciated

72 WAØITP
I love this radio stuff.
www.wa0itp.com
www.4sqrp.com
www.wa0itp.com
Welcome To WAØITP's Ham Radio Web Site Promoting QRP operating and Construction. Pacific Mountain Central Eastern GMT
On 5/3/2017 8:24 PM, Paul Smith psmith61@... [4sqrp] wrote:
 

I called off and on and have not heard a call I could answer. I THINK there was someone trying but they were in the noise here. The RBN didnt hear me either. well next time de Paul N0NBD


Sent from Outlook



Re: Tonight's 40m net

AG1P Ron
 

No joy here in Oregon but at least noise levels are down since storms finally decided to move east.

 

72 - Ron - AG1P

 

From: 4sqrp@... [mailto:4sqrp@...]
Sent: Wednesday, May 03, 2017 5:55 PM
To: 4sqrp@...
Subject: [4sqrp] Tonight's 40m net

 

 

GE all,

Condx were bad, just made out WA9PWP and K4EQ who got honest reports when they appeared in between the static crashes. There was one other but I just couldn't copy, got the occasional 2 but nothing else. Was that you Chas?

Maybe better next week and hopefully Paul will have better luck on 80m shortly.

Be blessed all de Wayne - NQ0RP

 

--

 

QRP -  EFFICIENCY AND SKILL, NOT POWER. 

 

I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.


God Bless from Wayne Dillon - NQ0RP


Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17

 

NAQCC MWN NCS

NAQCC Net manager

NAQCC # 0759

Membership Chairman - 4SQRP Group

4SQRP 40m NCS
4SQRP #95

FISTS 17184

FPQRP #342 (Flying Pigs QRP Club)

G-QRP-11504

QRP-ARCI #11505
SKCC #1155T

SOC #848
30MDG#1176

NEQRP #693

GORC #192

DMC (Digital Modes Club) # 06686

Zombie# 1186


Re: Tonight's 40m net

w2sh@...
 

Yessir Wayne,


'twas me.  I was a few minutes late and so missed Paul, WA9PWP, who is never less than 579 here, be it on 40m or 80m. 


You were a steady 559 and K4EQ was 589/599.


72,


Charles, W2SH






From: 4sqrp@... <4sqrp@...> on behalf of Wayne Dillon wayne.dillon@... [4sqrp] <4sqrp@...>
Sent: Wednesday, May 3, 2017 8:55 PM
To: 4sqrp@...
Subject: [4sqrp] Tonight's 40m net
 
 

GE all,
Condx were bad, just made out WA9PWP and K4EQ who got honest reports when they appeared in between the static crashes. There was one other but I just couldn't copy, got the occasional 2 but nothing else. Was that you Chas?
Maybe better next week and hopefully Paul will have better luck on 80m shortly.
Be blessed all de Wayne - NQ0RP

--
 
QRP -  EFFICIENCY AND SKILL, NOT POWER. 
 
I'm British by birth but American by CHOICE!

Jesus came to pay a debt He didn't owe because we owe a debt we cannot pay...

The Lord bless you and keep you
The Lord make His face shine upon you, and be gracious unto you
The Lord lift up his contenance upon you and give you peace.

God Bless from Wayne Dillon - NQ0RP

Joshua 24:14-15
2 Cor 5:17
1 Jn 2:17
 
www.4sqrp.com
Welcome to the web home of the Four States QRP Group, devoted to low power (QRP) amateur radio building and operation. Club Call Sign WQ5RP
NAQCC MWN NCS
NAQCC Net manager
NAQCC # 0759
Membership Chairman - 4SQRP Group
4SQRP 40m NCS
4SQRP #95
FISTS 17184
FPQRP #342 (Flying Pigs QRP Club)
G-QRP-11504
QRP-ARCI #11505
SKCC #1155T
SOC #848
30MDG#1176
NEQRP #693
GORC #192
DMC (Digital Modes Club) # 06686
Zombie# 1186


Re: 80 meter net a bust here

Paul Smith
 

Charles,

I wondered if that might have been you but I could not copy enough to answer.sri will try again de Paul N0NBD


Sent from Outlook




From: Charles Moizeau
Sent: Thursday, May 4, 2017 1:37 AM
To: 4sqrp@...; Paul Smith
Subject: Re: 80 meter net a bust here
 

Yes Paul,


that was me.  You were a good 569 in NJ.  I tried several times over about five minutes after each of your CQs, but no luck.  Sri.


72,


Charles,. W2SH




From: 4sqrp@... <4sqrp@...> on behalf of Paul Smith psmith61@... [4sqrp] <4sqrp@...>
Sent: Wednesday, May 3, 2017 9:24 PM
To: 4sqrp@...
Subject: [4sqrp] 80 meter net a bust here
 
 

I called off and on and have not heard a call I could answer. I THINK there was someone trying but they were in the noise here. The RBN didnt hear me either. well next time de Paul N0NBD


Sent from Outlook

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