Quad 34 MM rebuild

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07-Jan-2020 11:32 PM

Beusie

Beusie

Posts: 2

Dear All,

I have bought a Quad 34 with two MC input modules. I would like to change one input module for MM. 

The MM module part list shows for T1b / T3b a BC214C and for T2b / T4b a BC413. Does anybody knows which kind of transistors I can use instead of the old ones because the old ones are hard to find.

Thank you in advance,

Peter

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09-Jan-2020 01:43 PM

Stefaan

Stefaan

Posts: 628


A second hand Quad 34 MM module is here:

http://www.dadaelectronics.eu/shop/quad-second-hand-parts/quad-used-spare-parts/34-disc-input-module-3mv-47k

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09-Jan-2020 02:26 PM

Beusie

Beusie

Posts: 2

Hello Stefaan,

Thank you for your reply.

Best Regards,

Peter

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09-Jan-2020 04:12 PM

Fabian

Fabian

Posts: 104

The shop says "In stock: 0", Stefaan. :) This will probably keep many folks from even asking.

I have no personal experience with finding equivalent transistors for discontinued types, but sites like www.datasheets360.com list several "Functional Equivalants" e.g. for the BC214.

BC413 seems to be still available, at least in B or C spec. From the specs it looks to me like the BC413B should do, but don't take my word for it. More experienced people might be able to provide better advice.

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