[R-390] OT: HP-410B Tubes

[Steve Byan]

On Mar 1, 2011, at 9:51 PM, Barry wrote:

> I have an HP-410B that I have cleaned, recapped and trying to get working properly again.  

Thanks for the report on your HP-410B experiences. It's motivated me to get mine off the shelf and on to the bench.

One question - how the heck did you get in there to recap it? I've removed the chassis screws and desoldered the AC line input connection to the front panel switch, but the cable harness is still to tight to let me into the innards. Did you have to unsolder much of the wiring?

Mine's an old one too, pre-PC board. I did manage to get in to clip out the 0.01 uF Black Beauty caps across the AC line - it's scary to think what those things must be leaking to the chassis ground!

Best regards,
-Steve

-- 
Steve Byan <stevebyan at me.com>
Littleton, MA 01460