From synades@mainz.netsurf.de Tue Mar 12 11:46:19 1996 12 Mar 96 14:46:09 +0500 9 Mar 96 15:31:05 +0500 Date: Sat, 9 Mar 1996 20:48:44 -0500 (EST) From: synades Cc: analogue@hyperreal.com Subject: Re: sync amplifier/which pins do i use for sync jack????? Truth: Pine sux! On Fri, 8 Mar 1996, DJMaytag wrote: > o.k. here's the sync amplifier circuit i've built to drive 10 syncs from 1 > input (juuuuuust a little over engineering here). now which pins do i > connect the in and outs to? you need 2 amplifer, one for the start/stop signal (DIN pin 1), and for the tempo clock (pin 3). pin 2 is ground. SYNC IN SYNC OUTS ------------------------ pin 1 o-------| in sync amp 1 out |---------o pin 1 | | |----o | gnd | |----o ------------------------ | pin 2 o----------------*-----------------------o pin 2 | |----o ------------------------ |----o | gnd | | | pin 3 o-------| in sync amp 2 out |---------o pin 3 ------------------------ |----o |----o quoting from Brien P Campbell : To clarify what has already been posted, the pins are as follows: pin 2 pin 5 pin 4 pin 3 pin 1 * * * * * (Excuse the drawing) This is looking at the rear view of the connector. synades From djmaytag@terracom.net Tue Mar 12 11:37:19 1996 12 Mar 96 14:37:14 +0500 8 Mar 96 23:01:43 +0500 Date: Fri, 8 Mar 1996 21:38:19 -0600 (CST) From: DJMaytag Subject: sync amplifier/which pins do i use for sync jack????? o.k. here's the sync amplifier circuit i've built to drive 10 syncs from 1 input (juuuuuust a little over engineering here). now which pins do i connect the in and outs to? >> > -------------------------o + 5v >> > | | >> > / | >> > 47k \ | >> > / 47k | / E >> > | B |< >> > |----/\/\----| PNP >> > | |\ >> > 100k | / C | \ C 1k >> > B |/ | >> > in o-/\/\------| NPN |--/\/\--o out >> > | |\ | >> > / | > E / >> > 33k \ | 22k \ >> > / | / >> > | | | >> > gnd o---------------------------------------o gnd >> >the first is a normal NPN transistor, a lot of types can used. >i would use a BC 547 (or BC 546, BC 548, BC 108, ...). roland uses 2 SC 945. > >the second is a PNP transistor, like BC 557, BC 556, BC 558, 2 SA 733, ... by the way, thanx out to synades, who sent me this schematic for this djmaytag@terracom.net three things to remember about me: 1) i'm not a dj 2) i have no intentions of becoming a dj 3) i'm not a washer and dryer repairman either