Help on HP8601A sweep generator

#5288

Hi group;
What a great resource this forum is. I recently aquired a HP8601A sweep
generator on E-bay in very nice cosmetic condition. In testing out it's
function it seems to have a failure in the hi-range divider module such
that the unit works on the low range (100khz-11mhz) but not on the hi
range (1-110mhz). I've looked at the Bama manual and it points to
motorola ECL divider chips (HP 1820-0101 = MC1034P  & HP 1820-0102 =
MC1013P). They give a troubleshooting procedure to isolate and test the
individual chips that I will attempt this weekend. However looking
ahead is there anyone that can identify a supplier for these vintage
ECL chips in small quanities (like one of each) at reasonable prices?

I thank anyone that can help me out. I'm very impressed with the design
and construction of this vintage HP sweeper and I would really like to
get it functional 100%. Also I'm curious on the years of production of
this unit, the chips had a date code mark of 1971.

Thanks Larry

#5289

On Wednesday 29 November 2006 10:08, Lefty wrote:
Hi group;
What a great resource this forum is. I recently aquired a HP8601A sweep
generator on E-bay in very nice cosmetic condition. In testing out it's
function it seems to have a failure in the hi-range divider module such
that the unit works on the low range (100khz-11mhz) but not on the hi
range (1-110mhz). I've looked at the Bama manual and it points to
motorola ECL divider chips (HP 1820-0101 = MC1034P  & HP 1820-0102 =
MC1013P). They give a troubleshooting procedure to isolate and test the
individual chips that I will attempt this weekend. However looking
ahead is there anyone that can identify a supplier for these vintage
ECL chips in small quanities (like one of each) at reasonable prices?You can likely replace those with equivalent-function stocked ECL chips (in 
the $5 price range). Since the chips you mention are single devices (IIRC 
single D and single JK FFs), there are various modern replacements. The 
replacements aren't pin-compatible, and usually come in SO package, but it 
should be trivial enough to wire them in.

Cheers, Kuba

#5290

what  about  sphere  electronics  in  canada   
or  maybe  even  deane  kidd??

Show quoted text

----- Original Message ----- 
  From: Kuba Ober 
  To: hp_agilent_equipment@... 
  Sent: Wednesday, November 29, 2006 11:25 AM
  Subject: Re: [hp_agilent_equipment] Help on HP8601A sweep generator


  On Wednesday 29 November 2006 10:08, Lefty wrote:
  > Hi group;
  > What a great resource this forum is. I recently aquired a HP8601A sweep
  > generator on E-bay in very nice cosmetic condition. In testing out it's
  > function it seems to have a failure in the hi-range divider module such
  > that the unit works on the low range (100khz-11mhz) but not on the hi
  > range (1-110mhz). I've looked at the Bama manual and it points to
  > motorola ECL divider chips (HP 1820-0101 = MC1034P & HP 1820-0102 =
  > MC1013P). They give a troubleshooting procedure to isolate and test the
  > individual chips that I will attempt this weekend. However looking
  > ahead is there anyone that can identify a supplier for these vintage
  > ECL chips in small quanities (like one of each) at reasonable prices?

  You can likely replace those with equivalent-function stocked ECL chips (in 
  the $5 price range). Since the chips you mention are single devices (IIRC 
  single D and single JK FFs), there are various modern replacements. The 
  replacements aren't pin-compatible, and usually come in SO package, but it 
  should be trivial enough to wire them in.

  Cheers, Kuba

#5291

Thanks Kuba... but a search of the Sphere site shows no stock on
those two IC types. And being new here Deane Kidd ?

Larry

--- In hp_agilent_equipment@..., "arthurok"
<arthurok@...> wrote:

what  about  sphere  electronics  in  canada
or  maybe  even  deane  kidd??

  ----- Original Message -----
  From: Kuba Ober
  To: hp_agilent_equipment@...
  Sent: Wednesday, November 29, 2006 11:25 AM
  Subject: Re: [hp_agilent_equipment] Help on HP8601A sweepgenerator

  On Wednesday 29 November 2006 10:08, Lefty wrote:
  > Hi group;
  > What a great resource this forum is. I recently aquired aHP8601A sweep
  > generator on E-bay in very nice cosmetic condition. In testingout it's
  > function it seems to have a failure in the hi-range dividermodule such
  > that the unit works on the low range (100khz-11mhz) but not onthe hi
  > range (1-110mhz). I've looked at the Bama manual and it points to
  > motorola ECL divider chips (HP 1820-0101 = MC1034P & HP 1820-0102 =
  > MC1013P). They give a troubleshooting procedure to isolate andtest the
  > individual chips that I will attempt this weekend. Howeverlooking
  > ahead is there anyone that can identify a supplier for thesevintage
  > ECL chips in small quanities (like one of each) at reasonableprices?

  You can likely replace those with equivalent-function stocked ECLchips (in
  the $5 price range). Since the chips you mention are singledevices (IIRC
  single D and single JK FFs), there are various modernreplacements. The
  replacements aren't pin-compatible, and usually come in SOpackage, but it
  should be trivial enough to wire them in.

  Cheers, Kuba

[Non-text portions of this message have been removed]

Pete

#5292

I missed the original thread on this request; would you please let Lefty(?) know that I have the original parts available
NOS. I will make either one or both available for $2 each + mailing cost.

Regards,
Pete Rawson

#5293

--- In hp_agilent_equipment@..., "Pete" <peterawson@...>
wrote:

I missed the original thread on this request; would you please letLefty(?)
know that I have the original parts available
NOS. I will make either one or both available for $2 each + mailingcost.

Regards,
Pete Rawson
Thanks a lot Pete, I've sent you an E-mail to make contact

Lefty

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Help on HP8601A sweep generator