[TMC] TMC-SBT-1KB

[H.L.]

Hi John:
Congratulations on the SBT-1KB. I do not have any documents, but refer you to John Poulton's (K4OZY) wonderful TMC resource at:

http://jptronics.org/radios/TMC/manuals/

It includes a complete manual for the SBE-2. I, too, have a SBE-2 without power supply. Its pin connections and voltages are as follows:

Pin A: 6.3VAC
Pin B: 6.3VAC
Pin C: 6.3VAC
Pin D: 115VAC
Pin E: POWER SWITCH S103 and 115VAC
Pin F: POWER SWITCH S103
Pin G: +150VDC B3 regulated
Pin H: +250VDC B1
Pin I: +180VDC B2
Pin J: +225VDC B4
Pin K: no connection
Pin L: ground
Pin M: no connection
Pin N: ground

I think the power transformer HV is 350-0-350 VAC. The current must be at least 300 ma because of the 6146 output tube in this 20-tube 1-Watt exciter.

Regards, Hal KK6HY

P.S. I still am hoping someone, somewhere knows of an original "retail" price of any TMC transmitter, exciter, or amplifier.  I have not found one price yet.





>First , Hello to Jim and Roy.
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>
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>Gentlemen;
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>
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>I am the proud owner of a Beautiful TMC-SBT-1KB.
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>The previous owner , in his haste to take it apart, used sidecutters on all the
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>harnesses, did not label anything , and to add insult to injury, cut the wires very
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>close to the board terminals.
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>All in all , I am hoping to find a Cabinet connection diagram or schematic.
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>The SBE-2 Mode Selector-Exciter is missing its power supply.
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>The Antennae Tuner is missing the outside box which contains the motorized variable
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>Vacume capacitors and switch gear.
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>I have a Synthesized Solid-State Multi-Mode Exciter an MMX-2, but it needs to be
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>tested and repaired.
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>I have other Tmc Equipment to trade for parts and information.
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>I would be appreciative for any help and or direction, suggestion ect. to get this
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>Magnificent Transmitter Back on line.
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>Thanks for Listening;
>
>john
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>jdkopke at cablespeed.com or 443-854-4311.
>
>John D. Kopke , Chief Mechanical Officer, MARC Commuter Railroad  (retired).
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>
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>
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