The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

I would like to know if you can do a crystal change to a 2 crystal AM cb board like you do to a 3 crystal board to obtain different frequencies. The board I have in mind is the PTBM092COX board in the CB model General Electric 3-5804D. This radio uses the PLL02A. Anyone's input would be most appreci...

Radio Make and Model: Colt 870 PCB Number: PTBM092COX PLL Number: 02A Test gear available: Symptoms: What is working: What has been tried: Did it suddenly happen ?: Anything else that may be of help?: Hello Again to the Radio Mods Community! I was wondering if anyone has a clear copy of the Colt 870...

If you should come across it, please post.

Dennis

Thanks, anyway Rick......your help is always appreciated.

Does anyone have a schematic on the Hygain 75A080 board?
This one seems hard to obtain.

Thanks

Thanks, Rick...I thought It might be. Do you have a copy of the PTBM092cox
board with the PTZZ033AOX board on it?

I'm waiting on parts for that Ptbm036AOX board, Rick, but I wanted to know what board model that is on the the schematic you posted on cb tricks for the Ham International Puma, the one that is drawn white on blue.

Denstar51

Ok, Rick, but what transistors should be used in their place?

Rick

You mentioned transistors. What transistors?

Denstar51

Thanks, Rick, Zodiac said you're good with replies and great with tech
know how.

Dennis [/b]

I wanted to ask the group if after adding more channels to the cb
board PTBM036AOX, can the board cover the band spread. The
coverage in question is about 1.6Mhz on both transmit and receive.
Would this board have to be broadbanded? Zodiac suggested I post
this msg. to the group.

Thanks

Denstar51

I am trying to find a schematic for the Hygain board 75A080. Does
anyone have this one, or do you know of another radio this board is used?

Thanks


Dennis
Denstar51

Sure, Dave, the radio is the hygain v with the PTBM036AOX board.

Can anyone tell me the poor man's way to do this with the least cash outlay?

Hello all.........

I was wondering if anyone is familiar with the Motorola HT90 charger. I have recently purchased one at a hamfest this past summer, but the charging light
stays on without a radio in it, and I don't see any DC output voltage at the pins. Can anyone help?


Thanks

Denstar51

Thank you for responding. Yes If you could walk me through the procedure, I
would greatly appreciate it. I plan to convert the board to 10 meters, but would like to see the mod on this addition of LED channel indicators.

Hello All.....

I have a HyGain CB board PTBM036AOX and would like
to know If I can Add a 40 Channel Display, since this
radio was made without it. Can anyone help?

Denstar51

Thanks for the info, can I build a unit like the Texas Ranger Counter,
I have some chips, do you have a diagram like that?

Hello all...........

Does anybody know if I can use a Frequency counter as a digital dial
on a hygain cb board PTBM036AOX?
I purchased a used Heathkit IM-4100 at a hamfest. Would appreciate
your feedback on this.

Dennis