[MRCA] Need Transworld TW-100 help

[J Mcvey]

Don't know what th circuit looks like, but from your description it sounds like old school discreet.The coupling cap between the tuned circuit and the transistor is critical. Maybe they are  leaky?
    On Sunday, August 18, 2019, 3:51:44 PM EDT, <jkarlow at comcast.net> wrote:  
 
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Al –

  

I looked through the parts I have here and found a box of new spares for the TW-100. Included in that lot is a new 100 Hz Synthesizer M5 in its anti-static wrapper. I removed it from the wrapper and it does show the 5.120 Osc Adjustment so this is probably what you are looking for. It has a green sticker on it with date 3-10-92. The M5 has been in storage here about 20 years. I no longer have a TW-100 to test it in so it is as-is. $75.00 plus shipment to your place.

  

Hope this helps,

  

Jim 

KA8TUR

  

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf Of Al Klase
Sent: Sunday, August 18, 2019 1:04 PM
To: Military Radio Collectors Association <mrca at mailman.qth.net>
Subject: [MRCA] Need Transworld TW-100 help

  

Gang,

The 5120 KHZ frequency-reference output from my M5, 100Hz Synth, module is only about 40mV P-P even when disconnected from the rest of the radio. Manual says I should have 2,8 VRMS.  I've changed the oscillator and buffer transistors to no avail.  DC voltage seem OK.

Doe anybody have a spare module, or even just the 5120 xtal?

Any help or suggestions appreciated.  Yes, I have a message in to the guy selling modules on E-bay.

This is for my Flyaway that I'd like to get running for the MRCA Gilbert meet.

Al


-- Al Klase – N3FRQJersey City, NJhttp://www.skywaves.ar88.net/  ______________________________________________________________
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