[BC] unreliable old equipment query

[Milton Holladay]

I saw 6CA7 and 6550 used in the BC-5P. but I don't know which was original.
I said ~=, not=, as it is apparent that the 6550 is heavier.
M

  12/29/2011 16:29: VIRUS ALERT!, Ron Youvan wrote:
>     Milton Holladay wrote:
>
>> 6550~=6CA7~=EL34
>> Gates BC-5P used 4 in PP/Parallel to drive 3CX2500F3 modulators; others
>> used a pair to drive 4CX3000s
>     I don't think so.  (the 6CA7=EL34 alright though)
>
> The basing is close, but the suppressor grid is different.
> The plate of the 6CA7 can dissipate 24 Watts.
> The plate of the 6550 can dissipate 42 Watts.
>
>        The KT88, KT90, and 6550, although not identical, are often interchangeable
>
>      from:  http://en.wikipedia.org/wiki/6550
>

-- 
Milton R. Holladay Jr. / miltron at att.net
Columbia, S. C. / 803-331-8059
RF Masurements / Planning&  Installation / Emergency Service&  Parts