STA5141 , TO5 transistor from 1974
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From: N_Cook on 3 Aug 2010 03:53 In the pa of HH HA100 amp from 1974, probably ok but cannot find any info on it, just maybe STA6141, a bit indistinct
From: N_Cook on 3 Aug 2010 04:21 N_Cook <diverse(a)tcp.co.uk> wrote in message news:i38htv$pbu$1(a)news.eternal-september.org... > In the pa of HH HA100 amp from 1974, probably ok but cannot find any info on > it, just maybe STA6141, a bit indistinct > > Logo on this and the other contemporaneous TO5 of 2N3440 and 2N5415 is indistinct that at first sight looks like curvey M but is STT or SIT or STI with shaded and sloping capital letters melded together
From: Arfa Daily on 3 Aug 2010 04:59 "N_Cook" <diverse(a)tcp.co.uk> wrote in message news:i38jil$uni$1(a)news.eternal-september.org... > N_Cook <diverse(a)tcp.co.uk> wrote in message > news:i38htv$pbu$1(a)news.eternal-september.org... >> In the pa of HH HA100 amp from 1974, probably ok but cannot find any info > on >> it, just maybe STA6141, a bit indistinct >> >> > > Logo on this and the other contemporaneous TO5 of 2N3440 and 2N5415 is > indistinct that at first sight looks like curvey M but is STT or SIT or > STI > with shaded and sloping capital letters melded together > > Wasn't STT one of Thomson's before they became Thomson Microelectronics, or some such ? Arfa
From: N_Cook on 4 Aug 2010 03:28 Arfa Daily <arfa.daily(a)ntlworld.com> wrote in message news:Jw26o.18757$MQ3.15750(a)hurricane... > > > "N_Cook" <diverse(a)tcp.co.uk> wrote in message > news:i38jil$uni$1(a)news.eternal-september.org... > > N_Cook <diverse(a)tcp.co.uk> wrote in message > > news:i38htv$pbu$1(a)news.eternal-september.org... > >> In the pa of HH HA100 amp from 1974, probably ok but cannot find any info > > on > >> it, just maybe STA6141, a bit indistinct > >> > >> > > > > Logo on this and the other contemporaneous TO5 of 2N3440 and 2N5415 is > > indistinct that at first sight looks like curvey M but is STT or SIT or > > STI > > with shaded and sloping capital letters melded together > > > > > > Wasn't STT one of Thomson's before they became Thomson Microelectronics, or > some such ? > > Arfa > I cannot be sure it is STT logo, I would not say it was STC , no C at the end. There was an STC STA9... range. Anyway for anyone meeting one in earnest it is TO3, NPN, "D" pinning EBC and probably 300V rating like the others in that area
From: John Robertson on 4 Aug 2010 15:22
N_Cook wrote: > In the pa of HH HA100 amp from 1974, probably ok but cannot find any info on > it, just maybe STA6141, a bit indistinct > > Perhaps a hi-resolution picture uploaded somewhere of the transistor? I see nothing in my 1979 D.A.T.A (Edition 46) Book for anything like ST*5141. Also who is HH? John :-#)# -- (Please post followups or tech inquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out." |