At 03:02 AM 9/14/98 -0800, Rich Measures wrote:
Hello again, Rich,
Your absolutely correct. Knowing Frank as a resourceful fellow, I suspect
he probably came across the components at a price he couldn't beat.
I remember I 'gave' a transformer to a fellow for $25 once because I
couldn't get it out of my car by myself. It was 3 phase, 220/440 volt
input and, if I remember, about 4 KV AC at 3 amps CCS. The guy was a
builder, needed one for a 4-1000 he was building (maybe a 2 holer), and was
VERY happy to get it.
73 de Steve, NJ4F
>The secret is that there are many hams who waste money on humungous anode
supply transformers. I know a guy in San Diego whose plate tranny is so
big it lives in a doghouse outside the house. . . How much is enough?.
A standard Peter W. Dahl 3kV 1.5A Hipersil® transformer [70 pounder]
powers an 8171 on SSB, providing c. 7800vdc during an "ahhhhhhhhhh" and
9100vdc during RX. [FWVD rectification]. The power gain is 20db.
Transformer heating is reasonable. Would a bigger transformer have been
better?. Not for SSB. However, to use the 8171 at full suds on RTTY
broadcasting, a 280 pounder, as well as a resonant-choke filter would
likely be needed. . And yet there are guys who buy one of Peter's 70
pounders to use outboard with an SB-220.
>- later, Steve.
>
>
>Rich...
>
>R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures
>
>
**** Please note new Email address...steve@1bigred.com *****
***** Will be discontinuing this one shortly *******
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