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Re: OT: Martin Forrester G7JWR
He may well still have a residence in Stok-on-Trent I went there once, curtains all closed and someone peeking out of corner?? Stuart
By Stuart Mckinnon · #4932 ·
Re: OT: Martin Forrester G7JWR
His QRZ page says he lives in Florida? He looks familiar and perhaps he¡¯s been at a UK rally in the past but i can¡¯t say I recognise him. Makes us brits look untrustworthy to our cousins across
By Spence G5STO · #4931 ·
Re: OT: Martin Forrester G7JWR
NO COMMENT Eugene ! But I wish you success... StuartG0TBI
By Stuart Mckinnon · #4930 ·
OT: Martin Forrester G7JWR
Sorry to rehash this. Last time I sent the email below, someone who is a friend of his was kind enough to contact him and let him know I was looking for him. Before the friend's assistance, months
By W2HX · #4929 ·
Re: just joined, need assistance with a deaf Syncal 30
Peter, Thanks for your reply. Yes, I have read the manual, finally, but not completely yet. I now know that I must be in SSB when looking for the 1.4 MHz signal at the test point. I do see the signal
By Dave Stepnowski KC3AM · #4928 ·
Re: just joined, need assistance with a deaf Syncal 30
Dave, It sounds as if you are making some progress. Did you read the manual on how the 1.4 MHz signal is generated? If you are in AM Rx it seems that the 1.4 MHz signal is muted (see Part 3 page 2-9),
By Peter Roberts · #4927 ·
Re: just joined, need assistance with a deaf Syncal 30
Richard, Thank you very much for this info and making it available. I have a TRA-931 that I am trying to repair although I feel like it is somewhat above my ability. The availability of the manual was
By Dave Stepnowski KC3AM · #4926 ·
Re: just joined, need assistance with a deaf Syncal 30
Folks, just to clarify the point below about the manuals on the vmars website.?? These are still free for anyone to access, without a password, membership or anything else.??? I was the first
By Richard Hankins · #4925 ·
Re: just joined, need assistance with a deaf Syncal 30
More pictures.
By Dave Stepnowski KC3AM · #4924 ·
Re: just joined, need assistance with a deaf Syncal 30
Hello there John, Thank you for your time and reply. You seem like a wealth of information. I will try to comment within your response.
By Dave Stepnowski KC3AM · #4923 ·
Re: just joined, need assistance with a deaf Syncal 30
Hi Dave, Its been a while since I worked on TRA931¡¯s like well over40 years ago now, but I do own several TRA931¡¯s and have had to maintain themfrom time to time. The TRA931 was probably Racal¡¯s
By John Whitehouse · #4922 ·
Early Syncal TRA921 Works Great!
Radio works fine. Hams comment the audio sounds very processed and I explained there is a built in clipper circuit. Is the microphone element a carbon element? Can someone tell me what the front panel
By KL7AM · #4921 ·
Re: just joined, need assistance with a deaf Syncal 30
Hello John, Dave here KC3AM and I am asking for some help. From your comments above maybe you can help me some with my TRA931 that I got from a friend who is now a SK. Not knowing anything about this
By Dave Stepnowski KC3AM · #4920 ·
Some info please?
Does anyone have a good photo or two of MA927 please. Also, can someone give me an estimated cost for one of these, and a Syncal 30 with auto tuner option please? Thank you Andy, G7BAV
By Andy · #4919 ·
Newbie help
Hello everyone. I have a TRA931 from a long time friend that is now a SK. Does anyone repair them. This seems to be a bit above what I feel comfortable with. I powered up with 23 VDC, was receiving
By Dave Stepnowski KC3AM · #4918 ·
Re: TRA 921 Speaker Pic
Hi Peter, Glad to help. Tom
By Tom B · #4917 ·
Re: TRA 921 Speaker Pic
Tom: At lunch time, I added a diode pull down of the bias of my amp to the PTT line, just like that in the schematics you posted. Works great. Now to redo the bread board, and stuff it into a small
By peter · #4916 ·
Re: TRA 921 Speaker Pic
Tom thank you! I didn't notice the attachment so i went ahead and made a simple 3 tr 1W amp. Got terrible issues with RF getting into my audio amp. By passing the audio input side didn't help and also
By peter · #4915 ·
Re: PRM-4021 PA module wiring
Thanks I got it eventually. Also found a YouTube video in Indonesian: https://www.youtube.com/watch?v=sU8t1wHWAjU&t=180s
By Ilan · #4914 ·
Re: Syncal 30 input voltage choice ?
Dennis: thanks for the guidance. I reconfigured my 2 parallel 24 series NimH pack into two strings of 10 cells//2 parallel(HR-4/3FAU? 4500mAH x 2).
By peter · #4913 ·