[Drake] Drake 2B modification question

[R274C@aol.com]

Good morning,

I recently obtained another Drake 2B/2BQ combo. It is very clean and works 
better than the other 2B I owned a few years ago. As I always do with any 
recently obtained receiver, I removed it from the cabinet, tested the tubes, used a 
little de-oxit and checked voltages. I noticed the 6X4 rectifier tube had been 
solid stated when looking at the underside of the chassis. Upon turning it 
over, I found that the 6X4 tube had been replaced with a OA2 regulator tube. All 
voltages appear fine, so my question is, is this a common modification? It is 
stable from turn on, much more so than any R4 series receiver that I have 
owned over the years and far better than the previously owned 2B.

Thanks for any light you might be able to shed on this modification.

Les Locklear
Gulfport, Ms.


--- StripMime Report -- processed MIME parts ---
multipart/alternative
  text/plain (text body -- kept)
  text/html
The reason this message is shown is because the post was in HTML
or had an attachment.  Attachments are not allowed.  To learn how
to post in Plain-Text go to: http://www.expita.com/nomime.html  ---