Subj : Re: Turntables and LPs
To   : Ogg
From : Ed Vance
Date : Tue Sep 07 2021 10:57 am

09-04-21 21:19 Ogg wrote to Brian Rogers about Turntables and LPs
Howdy! Ogg and Brian,

 Og> @MSGID: <6134217C.2111.dove-hob@capitolcityonline.net>
 Og> @REPLY: <612EB78C.83.dove-hobby@bbs.n1uro.com>
 Og> Hello Brian Rogers!

 Og> ** On Tuesday 31.08.21 - 18:33, Brian Rogers wrote to Ogg:

/SNIP\

 Og>> I volunteered to power up the transmitters on Sunday
 Og>> mornings and queue the national anthem. That was a cool
 Og>> job with lots of switches to flip and dials to turn.

/SNIP\

 Og> Yes.. I think my campus station was on AM at the time too.
 Og> There was a warm up period to reach spec before flipping some
 Og> main switches.

Those 866 Mercury Vapor Tubes (Valves) needed some time before
throwing High Voltage power at them.

Then They would look pretty flickering in the Power Supply.

The newer 3B28 Tube (iirc) didn't flicker but they lasted longer than
the 866'es could.

I told a friend about seeing the advertisement about the 3B28 and he
put two in his E. F. Johnson Valiant Transmitter and never had to
replace them. They didn't fail like the 866'es did.

Did You need a Commercial Radio License to operate the transmitter?

73 de Ed W9ODR               dit                 dit


.... I have a mind like a steel ...uh...er...whatchamacallit!
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