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

Johnno

Hi Bro

Johnno

Hi Lazza, glad to hear you are making a comeback, I am too!

73's
Johnno

Johnno

Waving a big fat hand right back at ya, from downunder!

73's
Johnno

Johnno

Hey there, welcome, and keep coming back!

73's
Johnno

Johnno

Going by the switches and it being 40 channels, I would say made between 78- 82, not worth much down here being AM only, good condition though. Search ebay for it. http://www.cbtricks.com/radios/general_ ... /index.htm PLL03A inside.

Cheers

Johnno

Hi all, now have TX on all modes, the band switch was installed upside down and whoever did it mixed up the red wire with the green one, still no RX on AM though, I really thought I had it, back to the drawing board, I guess.

Cheers

Johnno

Hello all, I am trying to align a radio ATM, I was able to find all the test points for the first part of alignment, the last one I did had straight forward instructions: Ch 40 USB RX mode Clarifier mid position, Frequency counter to secondary of TP3 (19th of IC1), adjust CT1 to obtain 17.1650MHz +-...

Johnno

Animal wrote:Did you recalibrate the meter after increasing the power?

Well thought out!

Johnno

Hi Animal, they come with a mic that has gain adjustment on them, maybe thats a clue for you, unless of course you already knew that!

cheers
johnno

Johnno

Yay

a new Cber, the first of many, I can feel it in my bones. G'day Chrome!

Cheers
John

Johnno

Hi Bob, have you used another radio on the same antenna system to eliminate that as a cause?

Cheers
John

Johnno

Put the rig in AM TX, the CRO in AC on a high voltage (2 or 5 volts) and if you have a X10 switch on the probe, turn it to X10. Hi lbcomms, apparently I didn't understand that part (I did put CRO on DC to check DC switch), my mistake, all the readings I obtained were incorrect (something to do with...

Johnno

Hi lbcomms, here are my findings: 0v to rf driver Q207 BC+E measured on ac setting on CRO. Discontinued testing on RF section. Started testing DC switching transistors DC setting on scope radio in SSB mode: Q220 base:1v unkeyed 1v keyed collector:0v uk 1v k emitter:1v uk 1v k Q219 b:1v uk 0v k c:1v ...

Johnno

Hi lbcomms, wow, nicely explained mate, even I could understand that. I will give it a try and see what happens, and report back my findings. Once again thanks very much!

Cheers
John

Johnno

Radio Make and Model:Super Lion PCB Number: PCMA004S PLL Number: LC7130 Test gear available:Soldering iron, sucker, DMM, CRO, AM/SSB transceiver, dummy load/power meter, SWR/power meter, adjustable voltage PSU, illuminated headband magnifier, external speaker and various hand tools. Symptoms: No tra...

Johnno

hmmm...well out of curiosity...it sounds like your speaking about the "component side" of the board, and saying the "gap" was too far, and you don't know how this happened....so i'm wondering...were they both "cut"....as in a hatchet job (mod) of some sort, or if not, ...

Johnno

Hi 222, no chance, the breaks in both left quite a gap, the pieces are still sticking up through board, you would have needed to snap the board in half for them to make any contact at all, the diode had actually shifted sideways ( thats how I spotted it ) and the resistor was at about a 25 degree an...

Johnno

Ok, I was checking voltages on the DC switching transistors, one showed voltage on one leg (Q220) and the other (Q219) showed no voltage anywhere, this prompted me to look closer at nearby components and I happened to notice a resistor (R221) had broke away from the board at one end which forced me ...

Johnno

Hmmm, the band mode switch looks new compared to other switches and I did see some the same kind of switch in an electronics store the other day, come to think of it. I have the radio hooked up to a dummy load and external speaker, when I key the mike on SSB, a screech comes through speaker and the ...

Johnno

Hi, this radio is on the bench ATM and I have CRO can anyone gove me some pointers please, thanks.

Cheers
John

Johnno

Hi, I got my self a CRO (25MHz), delivered today, I have been learning how to use it from the manual, I checked pin 5 on another O2A radio (Phantom Communicator) and the line was very gradually indicating voltage changes (setting 1v/cm) as i went through the channels (1-18). I have yet to put GE on ...

Johnno

Hi, I have only just joined and have had plenty of help from various people, so I have no complaints, but in the long run you must help yourself, read and learn some basics, then if people see you are willing to have a go yourself, and you are stuck, I am quite sure help will come.

Cheers
John

Johnno

Hi 222, tomorrow I plan to make radio day (Sunday) I will try the things you have suggested and report any findings or lack of... and frustrations

. Thanks again.

Cheers
John

Johnno

Hi lbcomms, ahhh good to know, thanks for the useful information , I will keep that in mind for bidding purposes.

Cheers
John

Johnno

yeah..chassis looks pretty familiar..i think i might have 1 or 2 of them kickin around. how you fixed for parts? and why bothering with...learning project or sentimental or collectors items? just curious. that schem. jpg. is useless in that format, to view, but maybe renders up in a better pic prog...

Johnno

Hi, these are the top and bottom pcbs of the GE B-model. Schematic too.

Cheers
John

Johnno

Hi 222, no, the GE I have is the B-model twin pcb (back to back) same board as GE super base but in a mobile transceiver. As far as I know the following were the only radios ever made with this twin board. U.S. SSB, PTBM080/085COX, PTRF003/004/005DOX Dak Mark X: {L209, L212, L214, RV9-AMC, RV201-ALC...

Johnno

Service and Alignment, Parts Layout and List, and Schematic Diagram to suit the following Cybernet radios: Philips SSB2001; Super Panther Mark I and Mark II; Super Bengal Base; Apollo Mark I, Phantom Communicator ; Karinna KSB-18; HMV Road Hound; Expo Bushranger; Dick Smith Hornet Mark I; Dick Smith...

Johnno

Here are some pics to prove it exists http://img220.imageshack.us/img220/7708/jvc2lens012m.th.jpg http://img3.imageshack.us/img3/1888/phantom003.th.jpg http://img34.imageshack.us/img34/3062/phantom005.th.jpg http://img3.imageshack.us/img3/4273/phantom004.th.jpg As you can see it is plainly a mostly ...

Johnno

Hi 222, the mode switch is not an enclosed unit so I sprayed it with wd40 and splashed it with isopropyl and gave it many turns back and forth to no avail. No I adjusted the CTs to get usb/lsb rx on freq is all, besides, I cant hear anything on am to adjust by ear, no rx on am, I got it on ebay some...

Johnno

Hi, just on CROs how bout a 40mHz Hitachi V422 anygood? Has no probes but I found a manual on the net.

Cheers
John

Johnno

Hi 222, same board as super panther, bengal, american electronics etc single board 02a but, has inbuilt swr meter as well and is 18 channel aussie version and yes old. It has modulation on am so I guess not mic audio and PA works, I adjusted ct1 and ct2 by ear using another set ( it was way off freq...

Johnno

Hi 222, did they work?

Cheers
John

Johnno

http://www.radiomods.co.nz/forum/viewto ... f=1&t=2721

Johnno

http://www.radiomods.co.nz/forum/viewto ... f=1&t=2724

Johnno

Hi anyone that is reading this, please keep posting on this forum, all input is worthy (even guesswork to me). I have perused the pages and it seems to me people just come here get their fix and are never to be seen again. You will need this place again one day, and maybe people will not be so willi...

Johnno

Hi 222, good to see you are still here, and TY for the reply, you seem like you know a bit about radios, could you give my other 2 posts a look? You seem to know what you are talking about, and I am following a similar path to you, I reckon, although far behind you

Cheers and 73's

Johnno

Hey 222, I enjoyed your posts immensely, keep up the good work.

Cheers and 73's

Johnno

Hi Andy, thanks very much for the information, I will be keeping a look out for one in the next month or so, money is a little tight at the moment, unfortunately

Cheers
John

Johnno

http://www.cbtricks.com/radios/uniden/p ... h_pg01.pdf
http://www.cbtricks.com/radios/uniden/p ... 10e_sm.pdf

I imagine its the same, except for power supply, chips the same.

Cheers
John

Johnno

Hi lbcomms, thanks so much for your help, you are a champion. I am seriously thinking of getting a CRO now, I had a look at them on ebay. Is a 60 megahertz ok too or does it need to be near 27mhz?

Cheers
John

Johnno

Hello again, I replaced Q210 before putting it back together, set up another HF radio using an UHF antenna, and was getting signal of 9+ all modes and sounding very nice, but, still no movement on power meter. With mic keyed it was drawing 1.3 amps and under modulation 1.5 amps (all modes). I don't ...

Johnno

Hi lbcomms, thanks very much for that, I will give it a try.

Cheers
John

Johnno

Radio Make and Model:General Electric A35825B PCB Number: PTRF003DOX and PTBM071COX PLL Number: O2A Test gear available: Digital multimeter,SWR/power meter, soldering iron and solder and de-soldering pump Symptoms:No transmit AM or SSB. What is working:Everything else fine. What has been tried: Repl...

Johnno

Hi there, just wanted to say what a great site this is and I feel privileged to be a part of it. There is no other resource like it!

Cheers and 73's
John

Johnno

Radio Make and Model: Expo Phantom Communicator PCB Number: ptbm048 PLL Number: 02A Test gear available: Digital multimeter, SWR/power meter Symptoms: No tx SSB and no RX AM What is working:All else functioning What has been tried:Visual check for dry joints. Did it suddenly happen ?: Purchased in t...

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