tube substitute

[PW47]

isaw at ebay tube silvania 5bk7a as substitute for 6922 ? before i replace my 6922 in my counterpoint sa1000 . ilike to have info about it the use of it : as alternative . thanks pw

 

[FullRangeMan]

Some datasheet:
Results of tube search
No equivalents informed in this site.

 

[PW47]

TUBE 5BKA7A

THANKS . SOME EBAY SELLERS SELLING IT AS POOR MAN 6922 . 5BK7A AND 6BQ7A . TUBE ROLLING . MALANDROS . IAM NEW INTO TUBES .

 

[tinitus]

please, no need to use other than normal letters


moderation post

 

[DF96]

Don't take your valve data from ebay sellers! They are notorious for assuming that same pinout means equivalent, and same date code means matched.

 

[Sorento]

compare datasheets:

6922:
http://frank.pocnet.net/sheets/128/e/E88CC.pdf

5BK7A:
http://frank.pocnet.net/sheets/127/5/5BQ7A.pdf

 

[PW47]

RSSSSS ! you alright

 

[FullRangeMan]

Nor the filament is similar, 5BK7 is a 5V heater, not 6V;

 

[PW47]

tubes

Nor the filament is similar, 5BK7 is a 5V heater, not 6V;

hey , idid compare the filaments they dont match , the volts diference could cause damage , and more heat . better stick up for the convencional . obrigado .

 

[FullRangeMan]

hey , idid compare the filaments they dont match , the volts diference could cause damage , and more heat . better stick up for the convencional . obrigado .

Thanks, your portuguese is good. 😉
Cheers

 

[PW47]

tubes x dogs and cats

Thanks, your portuguese is good. 😉
Cheers

yes ,my friend iam italo brazilian ,well look the prescription to short life for a ,preamps ! 6922 /6 dj8 10%replaces 6aq8 . < iam going to keep change as idid the original to original . thanks . 😱