HELP!! Valiant doing sneaky things!!

[Brian Carling]

On  1 Feb 98 at 16:36, Richard wrote:

Hey thanks for the great tip! I WONDERED about those capacitors.
They look VERY puny!

> The Valiant has a weak point in the PI network  of the final, actually
> *two* weak points--the fixed value TUNE and LOAD caps. The tune caps are
> small low power fixed mica units in series-parallel to improve votage
> handling vcapability, and on the one I had shoted. replace them with the
> appropriate valaues in doorknobs that will handle the RF.  The fixed
> LOAD cap is a stacked mica insulated unit that tends to short in one or
> more sections, replace the individual sections with the proper size
> doorknobs, or larger transmitting mica units. Note that if you undesize
> them or use units that won't handle the RF current efficiently they wil
> tend to drift, losing resonance. This goes fo trboth the TUNE and LOAD
> units.
>
> Luck and 73, Dick W0EX
>
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****************************************************
*** 73 from Radio AF4K/G3XLQ Gaithersburg, MD USA  *
**  E-mail to:  bry at mnsinc.com                     *
*** ICQ 6124470  ***
**  http://www.mnsinc.com/bry/                     *
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AM International #1024, TENTEN #13582. GRID FM19. Using a SWAN 250 on 6m,
Other rigs: Valiant, DX-60/HG-10, FT-840, TM-261A, Ameco TX-62, Gonset Comm. III
TEN-TEN #13582, DXCC #17,763 Bicentennial WAS

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