[sdiy] ARP 2500 schematic question for 1027 Cocked Sequential Controller

[gordonjcp at gjcp.net]

On Fri, Sep 26, 2014 at 04:06:55PM -0400, Travis Thatcher wrote:
> Hi all,
> 
> Trying to troubleshoot why step 8 of an Arp 2500 1027 Clocked
> Sequential Controller does not produce any voltage on any of the 3
> outputs, nor does the gate out work. I'm wondering if anyone knows
> what chip/circuit the TD1-10 is and also what PL-#s are?
> 
> http://www.guitarfool.com/ARP2500/images/1027_sch.jpg
> 
> Thanks!

Just a guess, but is "TD" the "Typical Driver" shown at the top right? "PL" looks like it might be "Panel Lamp", a small incandescent bulb.

-- 
Gordonjcp MM0YEQ