Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!columbia!rutgers!labrea!decwrl!spar!faunt From: faunt@spar.SPAR.SLB.COM (Doug Faunt) Newsgroups: sci.electronics Subject: Re: Those magic eyes Message-ID: <180@spar.SPAR.SLB.COM> Date: Wed, 22-Jul-87 15:14:08 EDT Article-I.D.: spar.180 Posted: Wed Jul 22 15:14:08 1987 Date-Received: Fri, 24-Jul-87 06:09:58 EDT References: <1002@me.ri.cmu.edu> <1861@kitty.UUCP> Reply-To: faunt@spar.UUCP (Doug Faunt) Organization: Schlumberger Palo Alto Research - CASLAB Lines: 30 In article <1861@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes: > As far as I know, the 1629 is electrically identical to the 6E5, >but is an industrial/military equivalent in an octal base (the 6E5 is a >6-pin base). While I don't have the exact electrical specs for the 1629 >handy, I do have the pin-out data from a tube tester reference manual >(don't laugh - we still have a tube tester buried in a storeroom!): > > Plate = pin 2 > Grid = pin 5 > Cathode = pin 8 > Target anode = pin 4 > Filament = pins 2 and 7 > Pin 1 has no connection, and pin 6 is physically missing > >> Any suggestions are greatly appreciated (especially about >> possible low-cost power supplies). > ><> Larry Lippman @ Recognition Research Corp., Clarence, New York ><> UUCP: {allegra|ames|boulder|decvax|rocksanne|watmath}!sunybcs!kitty!larry ><> VOICE: 716/688-1231 {hplabs|ihnp4|mtune|seismo|utzoo}!/ ><> FAX: 716/741-9635 {G1,G2,G3 modes} "Have you hugged your cat today?" Larry, can you check your tube checker reference for verification of this? As I remember it, the 1629 has a 12V filament winding. The old ARC-5 transmitters used a pair of 1625's for the PA, a 1626 for the ECO, and a 1629 for a tuning indicator (ECO calibration check with the crystal?) arranged with the filaments of the 1625's in series, and the filaments of the 1626 and 1629 in series, for running off the 24V input. The HV was generated by a dynamotor.