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-   -   Mic wiring details, PYE MX290 (https://www.vintage-radio.net/forum/showthread.php?t=156628)

sidspop 18th May 2019 9:04 am

Mic wiring details, PYE MX290
 
I have one converted to 4 metres, but no microphone.
I did find the pinout for 5 PIN DIN mic socket ages ago, but cannot locate it now on internet search.
Does anybody have it please?

davidw 18th May 2019 9:19 am

Re: Mic wiring details, PYE MX290
 
Its a 5pin din
1...Mic Live
2...Ground
3...10v PTT line
4...RX low level audio
5...10v output
The PTT is taken to 10v +ve not ground on transmit..
Hope this helps

sidspop 18th May 2019 9:34 am

Re: Mic wiring details, PYE MX290
 
Thanks David.
I looked all over for it.
Evidently not in the correct place...

SiriusHardware 19th May 2019 10:06 am

Re: Mic wiring details, PYE MX290
 
If you have difficulty getting a third party microphone to work nicely I believe I have one or two original Pye M290 / MX290 microphones (with plugs fitted) stashed somewhere in the loft. They may be either conventional fist type microphones or the quirky looking 'shaver' microphones, not sure what I have left.

sidspop 19th May 2019 10:27 am

Re: Mic wiring details, PYE MX290
 
All sorted now.
I have a number of Skiptech hand mics with electret insert and up/down buttons on top.
No idea what they are for, I removed the 5 pin din and plug on the end of the mic and used a normal 4 pin connector.
Not bothered about originality, the radio owes me nothing as it came as part of a job lot.

SiriusHardware 19th May 2019 11:19 am

Re: Mic wiring details, PYE MX290
 
I use a low-band MX290 on 4m - it's one of the nicer looking ones fitted with a reprogrammed CX290 control head which functions as a frequency display and channel up/down step controller.

The only minor drawback is the lack of an s-meter, but it's such a nice looking radio that I would be reluctant to hack holes in it for an edge-reading s-meter or a row of LEDs.

sidspop 19th May 2019 8:21 pm

Re: Mic wiring details, PYE MX290
 
True.
I use the theory if I can hear them, I can hopefully work them.
If they can't hear me then we have not had the contact.
S meters do not bother me, if I was bothered I would simply use an external one, fed via a flying phono lead.


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