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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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18th May 2019, 9:04 am | #1 |
Triode
Join Date: Jun 2015
Location: West Bromwich, West Midlands, UK.
Posts: 42
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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? |
18th May 2019, 9:19 am | #2 |
Heptode
Join Date: Sep 2006
Location: Woodbridge, Suffolk, UK.
Posts: 643
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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
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Dave G1AGK. My perception is my reality! Last edited by davidw; 18th May 2019 at 9:22 am. Reason: add info |
18th May 2019, 9:34 am | #3 |
Triode
Join Date: Jun 2015
Location: West Bromwich, West Midlands, UK.
Posts: 42
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Re: Mic wiring details, PYE MX290
Thanks David.
I looked all over for it. Evidently not in the correct place... |
19th May 2019, 10:06 am | #4 |
Dekatron
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,575
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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.
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19th May 2019, 10:27 am | #5 |
Triode
Join Date: Jun 2015
Location: West Bromwich, West Midlands, UK.
Posts: 42
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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. |
19th May 2019, 11:19 am | #6 |
Dekatron
Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,575
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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. |
19th May 2019, 8:21 pm | #7 |
Triode
Join Date: Jun 2015
Location: West Bromwich, West Midlands, UK.
Posts: 42
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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. |