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DIY Stompboxes => Building your own stompbox => Topic started by: matthew.wj on March 11, 2020, 05:25:24 PM

Title: Pinout for Russian P416B Ge "Flat Hat" Transistor?
Post by: matthew.wj on March 11, 2020, 05:25:24 PM
I've searched around online to find the pinout for this peculiar transistor.

Seems like it is a bit different from other Ge transistors (and the Mill-Max socket it will be inserted into.)

The socket is CBE, but I *think* the transistor is ECB, with the collector in the middle. Can anyone confirm that?

I found a small dot on the rim of the hat. Someone somewhere posted a diagram in Russian. I don't read Russian, but using Google Translate, I think the small dot is the emitter, the middle is the collector, and the third is the base.

I'd love it if someone could confirm!
Title: Re: Pinout for Russian P416B Ge "Flat Hat" Transistor?
Post by: Bunkey on March 11, 2020, 05:29:07 PM
(https://cdn10.bigcommerce.com/s-sxoup5r/products/3683/images/5874/P416__08146.1500679615.1280.1280.jpg?c=2)

Just found this on smallbear
Title: Re: Pinout for Russian P416B Ge "Flat Hat" Transistor?
Post by: j_flanders on March 11, 2020, 07:07:14 PM
By coincidence I tried those in a Fuzz Face today. :)
I found various pinouts but since my transistors also have the dot on the rim I went with the same pinout as Bunkey posted.
https://alltransistors.com/pdfdatasheet_russia/p416a_p416b.pdf


The diagram on diy-tubes seems incorrect or coming from another transistor or there actually are different versions.
http://diy-tubes.com/index.php?route=product/product&product_id=651
Title: Re: Pinout for Russian P416B Ge "Flat Hat" Transistor?
Post by: matthew.wj on March 11, 2020, 10:09:06 PM
Did the ECB pinout arrangement work for your Fuzz Face?
Title: Re: Pinout for Russian P416B Ge "Flat Hat" Transistor?
Post by: j_flanders on March 12, 2020, 02:50:32 AM
Quote from: matthew.wj on March 11, 2020, 10:09:06 PM
Did the ECB pinout arrangement work for your Fuzz Face?
Yes, that was the one, it worked.