WTD- Help on data for an SFE793 JFET

[gcd]

Hi All,
looking for data on an SFE 793. JFET. Unable to find anything in my usual
sources, can anyone help.

Want to find an equivalent for replacement

Thanks
Greg

 

[Phil Allison]

looking for data on an SFE 793. JFET. Unable to find anything in my usual
sources, can anyone help.

** That looks like a code number and not a regular catalogue part number,
like the SJ xxxx and SJExxxx numbers from Motorola for specially
selected transistors.

Is there a maker's logo ?

It is out of some very old piece of gear ?

You know all this but elect to keep it secret just to make it harder to help
you ?????





............. Phil

 

[gcd]

Hi Phil et al,

1) No logo

2) It is from some old HP gear. The HP part number is 1855-0020, did a web
search and found a cross ref which identified the SFE part#. i don't have
any hp bench briefs to look through to find it

3) Learn something everyday, didn't know the sfe may be a special as opposed
to a standard part number. Having said that the cct is a sample hold and
uses two, one to switch to sig the other to gnd, so i expect they are
matched pairs.
My equivalents books indicated SFF and other SF* parts so I expected it was
a part number. Checked caps xpert cd reference library,and some online
sources such as freetrade etc but to no avail.

Cheers
Greg

 

[Phil Allison]

"gcd" <

1) No logo

2) It is from some old HP gear. The HP part number is 1855-0020, did a web
search and found a cross ref which identified the SFE part#. i don't have
any hp bench briefs to look through to find it

** I did a Google search and turned up the same HP number.

You do not even have a sample of the SFE 793 device - you only have the
secretly marked similar HP one.





........... Phil