Thank you Jay!! Much appreciated, Mauro
Sent from my iPhone
On Mar 3, 2023, at 4:21 PM, Jay Hennigan via Jukebox-list jukebox-list@lists.netlojix.com wrote:
On 3/3/23 12:57, M De Simone via Jukebox-list wrote:
A fellow jukebox repairman asked me if I knew of a substitute for this FET transistor. I do not, since I work predominantly on tube amplifiers. So I thought I’d ask the group here and see if I could help him out. It is Q18 on the “mute and squelch board” and Rockola part # 52342 and the part description is: N - Channel Junction FET.
I don't have a direct cross-reference but it looks like a common small signal JFET. Pretty sure your amp is for a model 478 or similar vintage.
2N547 or 2N5486 in TO-92 plastic case or 2N4857A in TO-18 metal case should work fine.
-- Jay Hennigan - jay@west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV _______________________________________________ Jukebox-list mailing list -- jukebox-list@lists.netlojix.com To unsubscribe send an email to jukebox-list-leave@lists.netlojix.com %(web_page_url)slistinfo%(cgiext)s/%(_internal_name)s Searchable Archives: http://jukebox.markmail.org/