[Boatanchors] KWM-2A Problems

[Gary Schafer]

Could be a dirty meter switch.
Check to see if you can get grid current. 
Driver stages need alignment.
Weak tube(s) in low level, driver stages.
How much output do you actually get?

73
Gary  K4FMX

> -----Original Message-----
> From: boatanchors-bounces at mailman.qth.net [mailto:boatanchors-
> bounces at mailman.qth.net] On Behalf Of n2lxm at juno.com
> Sent: Friday, January 21, 2011 7:47 PM
> To: boatanchors at mailman.qth.net
> Cc: milsurplus at mailman.qth.net
> Subject: [Boatanchors] KWM-2A Problems
> 
> Good Evening All,
> 
>         I have a KWN-2A on the bench for some work. This radio was given
> to me along with two of 516F power supplies, an 312B-5 Remote VFO /
> Phone
> patch / Wattmeter, and a 30L1 amp. I have rebuilt one of the power
> supplies, replace all the caps, upgraded the tube sockets with ceramic
> types, and install a primary power relay. After doing the needed
> cleaning
> of controls and the relays the transceiver works O.K. The two issues I
> am
> having are. No ALC being indicated on the meter. And the other is low RF
> output, but only in the 3.8 to 4.0 Mhz range. Running the output into a
> dummy load on all other frequencies the output is to what I would expect
> from a pair of 6146's. I am going to dive into the manual over the
> weekend, but has anyone had or seen these problems. And if so what are
> the likely areas of fault. Any and all help will be greatly appreciated.
> Than You.
> 
> 
>                                 Jeff N2LXM
>                   AMATEUR RADIO OPERATOR
>                                 AMERICAN
>                                   PATRIOT
>                   Proud Father of two US MARINES
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