External bias on VH-4's....

  • Thread starter Thread starter Mizati20
  • Start date Start date
Mizati20

Mizati20

Active member
What year did they start putting the external bias on the VH-4's?

Or have they ever? :confused: :doh:
 
Mizati20":39rot2hn said:
What year did they start putting the external bias on the VH-4's?

Or have they ever? :confused: :doh:
Click to expand...

Never have, and as of last week.....never will. Some new law.........

Steve
 
Mizati20, you're thinking of the Herbert. They added external bias points maybe a year or so ago.

Steve, can you elaborate about this law preventing it on the VH4? TIA! :)
 
steve_k":2rzblvdh said:
From Herr Diezel......viewtopic.php?f=14&t=60815
Click to expand...

Thanks for the link! I guess this goes to show how long it's been since I checked the forum. :doh:

I was curious partly because I bought a VH4S on eBay almost a year ago that had an external bias pot added by a third party. That made trying out 6L6s, 6550s, and EL34s quite easy. :rock:
 
insignificant11":12gy5w1e said:
Mizati20, you're thinking of the Herbert. They added external bias points maybe a year or so ago.
Click to expand...


my herbert is a late 2006 model (>660 serialno.) and it already has them.
 
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