Whatever happened to BC214C ?

Archived from groups: rec.audio.tech (More info?)

They seem to have vanished off the face of the earth. BC 559C suitabale
replacement ?

geoff

Archived from groups: rec.audio.tech (More info?)

Norbert Hahn wrote:
> "Geoff Wood" <geoff@paf.co.nz-nospam> wrote:
>
>> They seem to have vanished off the face of the earth. BC 559C
>> suitabale replacement ?
>
> The BC 212, 213, 214 family of PNP transistors have been replaced by
> more recent ones, the 559, 560 family being one of them. All types
> have an additional letter appended which denotes the collector/base
> ratio.
> This letter specifies about the same range at BC213 and BC 559.
> BC 214 is the low noise version of the BC 213.
>
> The main difference between the 559 and the 560 is the maximum
> Collector- Emitter voltage. BC559 has a minimum Collector-Emitter
> Breakdown Voltage of -30V (as does the BC 213/214) while the minimum
> of BC560 is -45V.
> Noise seems no longer to be critical so there is no special low noise
> type.
>
> HTH
> Norbert

Used a BC559C which seems fine. Originals were dinky little Ferranti
ZTX-214C (for Quad 405). I still have some of the little ZTX-304 and 504s !

geoff