HP ICs from and old Freq counter

[Allen Bong]

Hi,

My friend gave me an old, semi-dead HP frequency counters with a
7-nixie-tube display which looks kind of cute. The model is HP5327C and I
wanted very much to make it work again. Can someone help me with the HP
inhouse chips below with their generic part numbers?

1820-0119
1820-0116
1820-0092
1820-0275
1820-0729
1820-0307
1820-0143
1820-0102
1820-0054 = 7400 (actually 4342 DTL)
1820-0147
1820-0273
1820-0274
1820-0310
1820-0253
1820-0489
1820-0212
1820-0102
1820-0440
1820-0145

Any help would be much appreciated. If a service manual could be obtained
anywhere, it would be much better.

Allen


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The next war will determine NOT who is right BUT what is left.

 

[Jim Adney]

On Tue, 26 Aug 2003 17:12:14 +0800 "Allen Bong" <sfbong@tm.net.my>
wrote:

My friend gave me an old, semi-dead HP frequency counters with a
7-nixie-tube display which looks kind of cute. The model is HP5327C and I
wanted very much to make it work again. Can someone help me with the HP
inhouse chips below with their generic part numbers?

Contact Matsuda, Ed
PO Box 390613
San Diego, CA 92149
ematsuda@earthlink.net
Home phone: 619-479-0225 (evenings and weekends OK)
fax: 619-479-1670
Sells H-P and Tektronix manuals, very helpful

He can probably sell you a manual. Tell him your serial number, too,
and ask for a manual that matches that number. The manuals for that
era of instrument often included a pinout and description of each IC
used in it that would let you figure out what it was. Sometimes that
information is directly in the parts list.

-
-----------------------------------------------
Jim Adney jadney@vwtype3.org
Madison, WI 53711 USA
-----------------------------------------------

 

[Allen Bong]

Thank you Jim, for your good advice. I will do it soon.

Allen

"Jim Adney" <jadney@vwtype3.org> wrote in message
news:cq8okv4rhr38p1m1v99putrfl9jsbd2qti@4ax.com...

On Tue, 26 Aug 2003 17:12:14 +0800 "Allen Bong" <sfbong@tm.net.my
wrote:

My friend gave me an old, semi-dead HP frequency counters with a
7-nixie-tube display which looks kind of cute. The model is HP5327C and
I
wanted very much to make it work again. Can someone help me with the HP
inhouse chips below with their generic part numbers?

Contact Matsuda, Ed
PO Box 390613
San Diego, CA 92149
ematsuda@earthlink.net
Home phone: 619-479-0225 (evenings and weekends OK)
fax: 619-479-1670
Sells H-P and Tektronix manuals, very helpful

He can probably sell you a manual. Tell him your serial number, too,
and ask for a manual that matches that number. The manuals for that
era of instrument often included a pinout and description of each IC
used in it that would let you figure out what it was. Sometimes that
information is directly in the parts list.

-
-----------------------------------------------
Jim Adney jadney@vwtype3.org
Madison, WI 53711 USA
-----------------------------------------------