The Mellotron Group

Pnp germanium transistor Hfe 50-60

Pnp germanium transistor Hfe 140-160

Npn would be fine too, the only real caveat is the leakage has to be on the low side

C! .01

C2 25uf

C3 0.1uf

C4 0.1uf

R1 1M

R2 8k2

R3 470k

R4 1k8

R5 50k b Drive pot

R6 2k2

R7 8k2

R8 15k

R9 47k

R10 2M2

R11 500k b volume pot

Q1 OC75, OC81, 2G381 or PNP Germanium Hfe 40-80

Q2 2G381 or PNP Germanium Hfe 40-80

Q3 2G381 or PNP Germanium Hfe 120-200+

The higher the Hfe the lower the noise and leakage

Other likely types some very rare

NKT275,,OC44,OC71,OC77,AC122,AC128,AC151,

2N404, 2N508, 2N527, 2N1305,2N1307, 2sbSB175, 3AX31

On Mon, Mar 18, 2013 at 7:05 AM, tron400 <tron400@yahoo.com> wrote:

Gino,

I did a quick web search for germanium transistors for sale. Maybe one of the links on this page will be helpful:

http://www.bing.com/search?q=germanium+transistors+for+sale&qs=AS&form=QBLH&pq=germanium+tran&sc=8-14&sp=2&sk=AS1

You could also try emailing Eric at STG Soundlabs. He builds 5U synth modules with vintage components.

http://www.stgsoundlabs.com/

Bernie

--- In newmellotrongroup@yahoogroups.com, gino wong <wonggster@...> wrote:
>
> Last Thursday somebody stole my pedal board and a guitar. The board had an
> old Sola Tonebender a Trem Face, Wah Face and Colursound OD and Memoryman
> rehoused to used knobs. All of the stuff is really old and I can get away
> with replacing most of it with modern copies. There are a couple of things
> that I can't do without and I am stupidly particular about them.

> *

> *
> I need buy, beg, borrow ,steal some old electronic parts to reconstruct a
> NoName (I assume Sola) Tonebender and and a Colursound sustainer. If
> anybody knows how I can get some old Germanium transistors, real ones used
> or new. I would be really grateful. 20 years ago they were common parts in
> the UK. In school I built amps for my friends so I am pretty sure I can
> build the two pieces that might cost me thousands to replace.
>
> Any advice from you tone gods, I am all ears.
>
> Thanks for being the great group of folks you are.. I have been meaning to
> say theat for a while
>
> Best
>
> Gino

> *.___

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Gino Wong Birgelo

BSComm, BSEE,

ReRED Recording, Analog Sound Design

Audio Mastering, Recording & Restoration, Logistics

Ginowong@gmail.com