seavote
Well-known member
at the moment i'm working on the hamptone lcmp mic pre amp:
http://www.hamptone.com/figure1.htm
http://www.hamptone.com/tape_op_art.htm
instead of the 100k potentiometer (r4) i'm using the -2db stepped attenuator described here:
http://www.hamptone.com/attn_tx.htm
i ordered the 1pole 12 position lorlin rotary switch recommended on the hamptone web site:
http://www.mouser.com/catalog/specsheets/LN-800005.pdf
i dont know how to hook up the attenuator.
my guess is: the 12.4K resistor to the pin marked 1 and 2 and the rest of the resistors in order. pin 1 also going to ground(0V reference, yeah? not chassis ground)
pin 11 or 12 from(send)the pcb
and the center pin to(return) the pcb
??????????????????????????????????????????????????????????
i'm thinking this should be obvious and easy to figure out but the 12th pin and the center pin are really confusing me. can someone tell me how to hook this up. a small explanation is appreciated but not necessary thanks
http://www.hamptone.com/figure1.htm
http://www.hamptone.com/tape_op_art.htm
instead of the 100k potentiometer (r4) i'm using the -2db stepped attenuator described here:
http://www.hamptone.com/attn_tx.htm
i ordered the 1pole 12 position lorlin rotary switch recommended on the hamptone web site:
http://www.mouser.com/catalog/specsheets/LN-800005.pdf
i dont know how to hook up the attenuator.
my guess is: the 12.4K resistor to the pin marked 1 and 2 and the rest of the resistors in order. pin 1 also going to ground(0V reference, yeah? not chassis ground)
pin 11 or 12 from(send)the pcb
and the center pin to(return) the pcb
??????????????????????????????????????????????????????????
i'm thinking this should be obvious and easy to figure out but the 12th pin and the center pin are really confusing me. can someone tell me how to hook this up. a small explanation is appreciated but not necessary thanks