[QuadList] Got my VR 1200's

C. Park Seward park at videopark.com
Fri Nov 27 08:15:25 CST 2009


Hi Doug

You'll have fun working on your "science experiment".

Air pressure 55 psi +- 2 @ 2.5 cfm.

I bought a cheap Sears and an expensive Gast. Love the Gast.

Get a ESR meter to check the caps. Around $100. I used shotgun caps  
until I discovered that the caps in the 1200 were actually better than  
new caps! At least as far as ESR.

THe big caps in the PS could be replaced but they are expensive. I  
have a PS guy who has repared sone of mine.

Best,
Park

C. Park Seward
818-535-2747 cell
949-679-1870 hm
Visit us at: www.videopark.com
Sent from my iPhone

On Nov 27, 2009, at 6:04 AM, "Doug Bingley" <dbingley at rock95.com> wrote:

>
> Thanks to some assistance from Don Norwood, I received two VR1200B's a
> couple of weeks ago. Should keep me busy all winter long!
>
> Couple of questions:
>
> 1. What is normal air pressure and volume requirements for these  
> beasts? Can
> I get away with a really little compressor and a big tank, or do I  
> need
> something with a lot of grunt?
>
> 2. Normally I recap old equipment as when a cap goes it often takes  
> other
> components with it. I will likely recap at the least the power  
> supplies.
>
> I am thinking of going through board by board and replacing  
> electrolytics
> before I power it up, but I'm afraid this could damage something as  
> I work
> on the boards. On the other hand I have worked on 70 year old radios  
> that
> still function with old caps.
>
> What have others experienced?
>
>
> Doug
>
>
>
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