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 Realistic AX 190 20-5155 (Circa 1972) Comms.
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 Return to top of page · Post #: 1 · Written at 10:59:20 PM on 23 January 2011.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

This is a sea change, for me, it's got transistors in it.

This one has been butchered around Q4 (RF input Board). It was apparently bought at swap with no books etc.

I need photo's of the top & bottom (particularly) of the board, in that area to see what else was attached and confirm, my guess as to what pieces of the printed circuit are missing.

Circuit & alignment would also be useful as I believe that anything with a core in it has been tampered with.

Thanks
Marc


 
 Return to top of page · Post #: 2 · Written at 5:30:40 AM on 24 January 2011.
Gfr53's Gravatar
 Gfr53
 Location: Harston, VIC
 Member since 28 February 2009
 Member #: 442
 Postcount: 145


G'day Marc,

Could you send me an email to gfr55.bigpond.com and I'll reply with all the info you require.

Cheers, Graham...
 
 Return to top of page · Post #: 3 · Written at 3:25:57 PM on 24 January 2011.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

Graham ... thanks will do.

Marc
 
 Return to top of page · Post #: 4 · Written at 10:53:58 PM on 29 January 2011.
Marcc's avatar
 Marcc
 Location: Wangaratta, VIC
 Member since 21 February 2009
 Member #: 438
 Postcount: 5389

Graham thanks for info.

Missing tracks confirmed & repaired

Fiddling noted further in, as there a 2 screws missing.

100Meg Osc was way off.

No oscillator input noted at 1st mixer (Q4) or Q5 & Q6. HFO plug is (naturally) showing no evidence of signal.\ (CRO & Freq counter)

T4 is a "Ring in" It is supposed to be a coupling transformer. Has no brand every other one has.
Only has one winding (pulled it to bits) needs two?

Looks like I need the right one.

Marc
 
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