17 Apr 2008 16:33:56

ian field

Tektronics Geremanium Tunnel Diodes.

While sorting some boxes of old junk I found a resealable plastic bag full of tiny paper envelopes, a couple of which had Tektronix brand labels. One envelope was marked: Tektronix 152-0177-00 Germanium tunnel diode, the others were: 152-0434-00 and 152-0465-00 Anyone know if its possible to find info on these parts? I've tried putting "152-0177-00" into google, there was only 2 pages of hits and no data that I could find. TIA.

17 Apr 2008 16:43:30

James Sweet

Re: Tektronics Geremanium Tunnel Diodes.

"ian field" <dai.ode@ntlworld.com > wrote in message news:UZKNj.47024$4f4.12256@newsfe6-win.ntli.net... > While sorting some boxes of old junk I found a resealable plastic bag full > of tiny paper envelopes, a couple of which had Tektronix brand labels. > > One envelope was marked: Tektronix 152-0177-00 Germanium tunnel diode, the > others were: 152-0434-00 and 152-0465-00 > > Anyone know if its possible to find info on these parts? I've tried > putting > "152-0177-00" into google, there was only 2 pages of hits and no data that > I > could find. > > TIA. > Those are hard to find, IIRC they're used in the trigger circuit of many older Tek scopes.

17 Apr 2008 17:44:23

ian field

Re: Tektronics Geremanium Tunnel Diodes.

"James Sweet" <jamessweet@hotmail.com > wrote in message news:S6LNj.16072$vz2.11832@trndny05... > > > "ian field" <dai.ode@ntlworld.com> wrote in message > news:UZKNj.47024$4f4.12256@newsfe6-win.ntli.net... >> While sorting some boxes of old junk I found a resealable plastic bag >> full >> of tiny paper envelopes, a couple of which had Tektronix brand labels. >> >> One envelope was marked: Tektronix 152-0177-00 Germanium tunnel diode, >> the >> others were: 152-0434-00 and 152-0465-00 >> >> Anyone know if its possible to find info on these parts? I've tried >> putting >> "152-0177-00" into google, there was only 2 pages of hits and no data >> that I >> could find. >> >> TIA. >> > > > Those are hard to find, IIRC they're used in the trigger circuit of many > older Tek scopes. > My 465 uses a couple of tunnel diodes - maybe I should keep the spares safe just in case. For some time I've been trying to find a "round tuit" to build a dip meter, with a couple of tunnel diodes in the parts drawer a tunnel dipper becomes a possibility.

17 Apr 2008 21:26:23

mike

Re: Tektronics Geremanium Tunnel Diodes.

ian field wrote: > While sorting some boxes of old junk I found a resealable plastic bag full > of tiny paper envelopes, a couple of which had Tektronix brand labels. > > One envelope was marked: Tektronix 152-0177-00 10maTD Germanium tunnel diode, the > others were: 152-0434-00 in the snapoff section of the "don't you dare use this in a new design section" , no info available and 152-0465-00 says it's a quad, no info available > > Anyone know if its possible to find info on these parts? I've tried putting > "152-0177-00" into google, there was only 2 pages of hits and no data that I > could find. > > TIA. > > > -- Return address is VALID!

17 Apr 2008 21:41:24

ian field

Re: Tektronics Geremanium Tunnel Diodes.

"mike" <spamme9@gmail.com > wrote in message news:3gPNj.51$fC5.30@trnddc02... > ian field wrote: >> While sorting some boxes of old junk I found a resealable plastic bag >> full >> of tiny paper envelopes, a couple of which had Tektronix brand labels. >> >> One envelope was marked: Tektronix > > 152-0177-00 10maTD Thanks - the 10mA info is useful > > > > Germanium tunnel diode, the >> others were: > > 152-0434-00 in the snapoff section of the "don't you dare use this > > in a new design section" , no info available > > and 152-0465-00 says it's a quad, no info available One of the envelopes was marked "quad - do not seperate". >> >> Anyone know if its possible to find info on these parts? I've tried >> putting >> "152-0177-00" into google, there was only 2 pages of hits and no data >> that I >> could find. >> >> TIA. >> >> >> > > > -- > Return address is VALID!