[sdiy] ARP submodule schematics

[Dana Scott]

In the later days of 2600 production we used 2n5087's and 2n5089's as
replacements for the tz parts. They had a different pinout so we had to use
a little piece of teflon tubing on one of the leads to prevent shorts. I
don't know who SPR was.
-Dana



Subject: Re: [sdiy] ARP submodule schematics


>
> According to the ARP service notes, the manufacturer designation is "SPR".
> The service notes also sugested G.E. part 2N5249 as an alternate to TZ81
and
> 2N5367 as an alternate to the TZ581. Both of these are all but
unobtainable
> now. You could probably use the 2N3904 for the TZ81 and 2N3906 for the
> TZ581.
>
> Jeff Brown