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

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  • \$\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


It is a HEP F1036

An internet search for cbc motorola sq decoder finds this.


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  • \$\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

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