Do these transistors suit the RM?

[JimRayden]

I'm talking about the GT series. GT309G, GT320V, GT403A/B, GT311I, etc etc. I just discovered a huge (and cheap) stock of these at the local store.

I don't think the good ones are sorted out either, so there's a good chance of getting one when I buy alot.

There are also the following transistors at alot higher price: 2SB324, 2SB337, AC187K, AC188K, AD162, P214A, P30, P605A, AD161.

Most of them have a voltage and a current rating next to them. Should I be looking for certain values?

-----------
Jimbo

[JimRayden]

I couldn't find much info on the GT's but the 2SB324 seems to be a direct replacement for AC128.


----------
Jimbo

[brett]

Hi.
I haven't had luck with AC187s, but quite a few people use AC188s.
According to RG, PNP was easier technology than NPN in the early days.
If they're cheap, I'd suggest that you grab 3 to 5 times what you'll need.  Rejection rates can be that high (or worse if someone's already picked through them like a lot that a friend got on e-bay.  None out of fifty.   )
good luck

[JimRayden]

Hi.
I haven't had luck with AC187s, but quite a few people use AC188s.
According to RG, PNP was easier technology than NPN in the early days.
If they're cheap, I'd suggest that you grab 3 to 5 times what you'll need.  Rejection rates can be that high (or worse if someone's already picked through them like a lot that a friend got on e-bay.  None out of fifty.   )
good luck

Hmm, I need one for a rangemaster. You say 3 to 5 times more? I bought various types at the local store, more precisely, 66 transistors alltogether. Plus I don't think anyone has sorted through them because, believe it or not, the germanium madness hasn't reached to where I live. And no, I don't mean the town, I mean the whole country. Now I'll just keep my fingers crossed.

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Jimbo

[tatems]

I have an AC188 and am planning on using it in a rangemaster.
I let you know how i go 

tatems

[8mileshigh]

I put an AC188 in my rangemaster, it sounds very good.  Where do you live ?  If you can get these cheap, want to sell me some ?  I got mine all the way from Germany and I'm in Montreal.

Chris

[Rick]

Hey 8mileshigh, nice to hear from another Montrealer. Got tons of great germs for a good price, also pcb etching etc. ...Rick

[MartyMart]

Jim, do the "GT309's" look like very small "flying saucers" ?
If so, Jeff Musser put me onto some on Ebay, they are Russian PNP's
and sound great !
I stuck a pair of 309A/309B in a Fuzz face with fantastic results
"A" is 50 -90 hfe and "B" is 90 - 130 hfe ( approx ) so not sure about
your "G's" perhaps too high hfe ?
I have some GT404/402's also which look like a larger version of an
AC128.
Have not got them working as yet ( wierd pinout ) but 404 is NPN and
402 are PNP

Marty.

[8mileshigh]

Hey Rick from Montreal,

Can you drop me a line concerning your source for germanium transistors on the Island.   I'd email you privately but I see your address is hidden.  Thanks

Chris

[JimRayden]

That's what PM's are for. 

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Jimbo

[birt]

I've got lots of transistors i know are good (AC188, AC128, OC44..) got a bunch of old transistors myself wich i think could be germaniums but i don't know if they are pnp or npn and what their pinout is. if you see anything familiar in the list let me know..
AC126
AC125
AC127
AC132
BSY53
BFY76
2N1613
2N1304
SB100
T76
OC141
OC71
OC72
OC73
OC74
OC76
OC77
OC202
BCZ11
2N224
AF117
TH THP 140 DG
TH THP 140 F2
2N2905
2N2907
2N2219
BC140
2N3440
2SB113
2SB223
2N527
NS MM504 111
2N4237
2N1671
2N1893
ASY77
2N3635
SDT5505
BF257
2N3823
2N910
2N3962
2N3440
2N2484
2N2646
2N3637
2SB242a
BC148
BC149
BC158
j106
C239C
BC172
K30A
1502D
BC251
BC171
BC252
BC308
1702N
BC174
BC137
MV2105
BC252
BC172
BC337
BC307
1402D

there's also lots of silicone in there but i didn't feel like opening a new topic just for this. i'm also spending a lot of time searching for the datasheets but they aren't easy to find and datasheets don't say "hey that good to build that particular guitar effect"

[8mileshigh]

That's what PM's are for. 

  lol ! That should trech me to read to the bottom of the page    I got it now

Chris

[JimRayden]

Birt, the AC's ond OC's are totally useless, you can aswell pack 'em up and ship over here, I can safely transport them to the local junkyard. The East-European junkyards are FAR better than any other in the world.

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Jimbo

[birt]

Birt, the AC's ond OC's are totally useless, you can aswell pack 'em up and ship over here, I can safely transport them to the local junkyard. The East-European junkyards are FAR better than any other in the world.

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Jimbo

will do.
you can also throw away my marshall 100watt, it doesn't seem to work and i can't figure out what that wire coming out of the back is