0
\$\begingroup\$

I have this poor scanned schematic on which there is a Motorola P-channel JFET, labeled as Q5, and I can't read the name. It seems to me that the 2nd note is written "Q5 is HEP*1036" where * represents an unknown character. So, does anyone know what it could be? Is there a HEPxxxx series of JFET's?

On this other datasheet there is the same circuit using the 2N5461, but I can't find those down here in Brazil. https://datasheetspdf.com/datasheet/MC1315P.html

enter image description here enter image description here enter image description here

\$\endgroup\$
3
  • \$\begingroup\$ It seems that NTE made (or makes) JFETs with HEPXXXX designations. \$\endgroup\$
    – JRE
    Jul 16, 2020 at 20:13
  • \$\begingroup\$ Right, Andrew Morton, thank you and just added the full circuit, and also a reprint on the datasheet with a legible note sugesting the 2N5461, which I can't buy from local suppliers. \$\endgroup\$ Jul 16, 2020 at 20:21
  • \$\begingroup\$ For an obsolete part, 2N5461 and the SMT version MMBF5461 seem to be reasonably available (eg. eBay, the usual scumbags who sell obsolete parts etc.) \$\endgroup\$ Jul 16, 2020 at 20:33

1 Answer 1

4
\$\begingroup\$

It is a HEP F1036

An internet search for cbc motorola sq decoder finds this.

https://duckduckgo.com/?q=cbs+motorola+sq+decoder&iax=images&ia=images

enter image description here

https://www.ka-electronics.com/images/jpg/CBS_SQ_Decoder_Variable_Blend_small.JPG

\$\endgroup\$
2
  • \$\begingroup\$ NTE rebadged from whoever the real manufacturer might be, appears to be NTE460, in TO-72 metal case. \$\endgroup\$ Jul 16, 2020 at 20:37
  • \$\begingroup\$ Thank you so much, I looked for MC1315, MC1314 and all I could find was this poorly scanned pint and legible print with the 2N5461. \$\endgroup\$ Jul 16, 2020 at 20:39

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.