[Milsurplus] A TCS Transmitter Wiring Mystery

[Ray Fantini]

Never knew there was a chart but don't think I ever saw the manual for the TCS anyway, have seen the schematic and the stuff in the CQ surplus conversion manuals and have operated the transmitters and receivers on occasion although don't have any today. My policy was to always tune to max current on antenna meter and dip for minimum current on plate. Other question would be the external antenna loading coil, I have always found the original coil to be just about useless on every antenna that I have connected the radio too. maybe on a short loaded vertical but with any long wire that coil did nothing but work in bypass. Other than that the TCS appears to be a good little radio although somewhat under powered for AM use. Would assume the TCS was the floating equal of the ARC-5 in terms of being a good radio for short range communications but not intended for anything beyond that?

Ray F

-----Original Message-----
From: milsurplus-bounces at mailman.qth.net [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of B. Smith
Sent: Wednesday, May 01, 2013 10:59 AM
To: milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] A TCS Transmitter Wiring Mystery

The TCS "Typical Dial Readings" chart is a very valuable aid when tuning SHORT antennas, even to the experienced operator. As you well know with your amateur experience matching  a single antenna on different bands- - 
- when you have tuned or matched  your   "antenna system" for maximum 
current (conjugate match)  there are sometimes  two or sometimes three settings that will produce a good output but it helps to be in the ball park for the correct setting, This "correct setting" gives maximum  
output, best  efficiency, less heating of matching components   as well 
as provide maximum harmonic retention.

BTW the TCS does not have any capability to spot or monitor the transmit crystal. I will post a "spot" mod on my web page in the near future.

Yes, it did require a FCC license.

73

Breck k4che
First Class Radio Telephone