Marcocet
Well-known member
It looks like 12afael, Jens and I finally have a production version of this PCB ready and we're about to place an order for ourselves. Essentially it's a clone of the classic Harrison sweepable filters. The board runs on +/- 15v, has extremely few parts, and is tiny enough to fit a bunch in a rack case. It could also easily be built into a 500 series module. The hardest parts to source are the 47k Rev Log pots, which are available at Audio Maintenance (thanks Colin!).
I'm not trying to run a shop or anything, but if anybody would like a few boards I can figure out a price and add them in to our order. Please feel free to PM me or email me at strangeweathersound @t gmail.
EDIT:
Boards are sold out. Here's the BOM. I've attached an excel copy too for those who are that way inclined.
5 10k R1, 2, 6, 7, 9
4 390 R3, 4, 5, 8
9 0.1u C1, 2, 6, 7, 11, 12, 13, 15, 16
1 100p C3
1 0.012u C4
1 0.047u C5
2 100u C8, 9 electrolytic
1 10u C10 electrolytic
2 50k Dual Lin LOPASS, HIPASS Audiomaintenance.com
1 ESWITCH 2 pole switch Audiomaintenance.com
1 INA134P IC2
1 TL074P IC1
1 DRV134PA U$1
http://strangeweatherbrooklyn.com/sales/HarrisonFilterBOM.xls
schematic here
I'm not trying to run a shop or anything, but if anybody would like a few boards I can figure out a price and add them in to our order. Please feel free to PM me or email me at strangeweathersound @t gmail.
EDIT:
Boards are sold out. Here's the BOM. I've attached an excel copy too for those who are that way inclined.
5 10k R1, 2, 6, 7, 9
4 390 R3, 4, 5, 8
9 0.1u C1, 2, 6, 7, 11, 12, 13, 15, 16
1 100p C3
1 0.012u C4
1 0.047u C5
2 100u C8, 9 electrolytic
1 10u C10 electrolytic
2 50k Dual Lin LOPASS, HIPASS Audiomaintenance.com
1 ESWITCH 2 pole switch Audiomaintenance.com
1 INA134P IC2
1 TL074P IC1
1 DRV134PA U$1
http://strangeweatherbrooklyn.com/sales/HarrisonFilterBOM.xls
schematic here
