[Amps] TRANS WORLD TW500A-RM

[Steve]

You're absolutely right, Dave. I found my manual which is for TW500M not 
TW500A. The TW500M is a 12V mobile amp and appears to be identical to 
Metron 1000B apart from the front panel badge. My apologies for the 
confusion.

I found a manual for Metron 100B on the BAMA site - apart from the brand 
name, it looks word for word, page for page identical to the TW one I have.

Steve

> I think there  is some sort of connection but the Transworld TW1000A and
> TW500A are totally different beasts than the Metron 1000B if that is what
> you are referring to.  The TW1000A and TW500A are large, heavy amplifiers
> built for commercial and government service paired with a Transworld
> transceiver. The TW series equipment was  found in US consulates worldwide.
> They would run 24/7 at full output for RTTY or WEFAX.  I loved my TW1000A
> and its 28 volt 80 amp.  ferro resonant transformer power supply.  I only
> gave mine to my son in law because I downsized and had no room for the
> equipment rack although it only took about 1/2 of a 5 foot rack. The back
> story is that in 2005  bought two of the RF Decks and one 80 amp power
> supply for $200 in from an ad on the local 75 meter swap net because he said
> they did not work.  It turned out the power supply was jumpered for 240 volt
> operation and someone had installed a 120 volt plug on the power cord.  That
> didn't go over well at all with the ferro resonant power supply.  When I
> replaced the plug with a 20 amp 240 volt plug I instantly got 1000 watts out
> on all bands with less than 100 watts drive. The second RF deck had blown
> final transistors and I sent it to Datron for repair.  $900 dollars later I
> had it back with all eight 125 watt transistors replaced.  I also picked up
> a surplus Telco 28 volt 40 amp power supply for the second deck but I don't
> think he has connected it yet but is keeping the second deck and Telco
> supply as spares since he has room.  The amplifier covers 1.8-30 Mhz
> continuously with low pass filters switched for a number of frequency banks.
>
> Dave W7VM
>
> -----Original Message-----
> From: Amps [mailto:amps-bounces at contesting.com] On Behalf Of qrv at kd4e.com
> Sent: Wednesday, December 21, 2016 2:09 PM
> To: amps at contesting.com
> Subject: Re: [Amps] TRANS WORLD TW500A-RM
>
> In the cobwebs of my memory I have a vague notion that the Transworld amp is
> associated with the Metron amp - is that correct?
>
> I have the Metron PDF.
>
> David KD4E