IP-27 Transistors

[Mark Graalman WB8JKR]

  Greg,

 Sorry, allow me to correct myself. I didn't realize the
2N301 was a PNP device so the 2N3055 wouldn't work
without design changes in the supply, but any like rated PNP
silicon device in a TO-3 case should.

73,  Mark  WB8JKR

On Tue, 1 Oct 2002 22:20:43 -0400 WB8JKR at juno.com writes:
>  Hi Greg,
>
>  Those are germainium but I see no reason why silicon
> units wouldn't work. Any silicon with TO-3 case,
> col E rating of about 70 v and 5 to 10 amps with a Hfe
> of at least 80 should work fine. Actually, a 2N3055
> would probably work.
>
> BTW, the 2N301 crosses to a ECG 121
>
> Mark  WB8JKR
>
>
> On Tue, 1 Oct 2002 17:49:50 -0700 Greg WB8NGA <greg at BOWSER.COM>
> writes:
> > Just wondering if someone knows of a good replacement
> > for the two series pass transistors for the IP-27 power
> > supply?  Mine are 2N301's but they aren't being made
> > anymore.
> >
> > Thanks in advance,
> > Greg
> >
> > -----------------------------------------------------------
> > This list is a public service of the City of Tempe, Arizona
> > -----------------------------------------------------------
> >
> > Subscription control -
> > http://www.tempe.gov/lists/control.asp?list=HEATH
> > To post - HEATH at LISTSERV.TEMPE.GOV
> > Archives - http://interactive.tempe.gov/archives/HEATH.html
> >
> >

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://interactive.tempe.gov/archives/HEATH.html