[Amps] LK 500 ZA bandswitch

[Van K7VS]

Dave.  I have a new tuning capacitor for the LK-550/500 series (both the 
tube and three tube model use the same plate tuning capacitor) I purchased a 
long time ago and if you can use it the price is $60.00 plus shipping.  I 
had a couple let go over the years as the spacing is a bit marginal. 
Regarding the bad contact on the wafer switch, I have had to do a drill and 
replace once and used very small screw/nut w/washer to hold the new contact 
in place and never had any problem.  And yes, it is a rather labor intensive 
job to pull the bandswitch but if you do it yourself will save bunches of 
money.  And if Bill doesn't get back to you shortly just keep trying as he 
is very busy there.  73 and good luck the LK series are very nice amps 
although pretty old now.  Good that Bill is still working on them for 
fellows that need the help.  Van, K7VS

----- Original Message ----- 
From: "dave arruzza" <w1ctn at yahoo.com>
To: <amps at contesting.com>
Sent: Thursday, October 25, 2007 11:22 AM
Subject: [Amps] LK 500 ZA bandswitch


> Hello all...
>  Has anyone found a replacement bandswitch for this amp?
>
>  Once while talking to Bill @ Omega Electronics he told me his was 
> drilling out the rivets on old bandswitches he had and retrofitting the 
> switches with new contact shoes.
>
>  Sounds labor intensive, but do-able. Does anyone on the list know where 
> you can purchase new contact shoes and the matching rivets? Or maybe you 
> can just use screws.
>
>  The bandswitch, and a few other parts, are minimal. I think my bandswitch 
> arced due to the padder caps, (C33, C34 and C35)  going south.
>
>  No output on 160/80/40. Ok on 20/15/10, where there are no padders 
> switched in.
>
>  But thats just a hunch. Seems kind of odd to put disk caps in that 
> environment.
>
>  My switch has a cooked contact or two and I need to get it repaired. I 
> tried calling Omega and just got voice mail.
>
>  73
>  Dave W1CTN
>  Now Low Power in CQWW....
>
>
>
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