Sukhbinder

i need the datasheet for the UM91214/91215 DTMF dialer IC. If any one has it or has links to it, please help me out :D

thanks for the link.

i need the connection diagram for a keithley 155 microvoltmeter. It would be very helpfull if one could provide me with its manual. need it urgently. :o

hi i came to know from you message posted that u have quite a collection of schematics. i'm looking for the schematic of a Technics SA-370S Deck. can u help me out with it.

i'am looking for the schematic for a technics sa-370s deck and receiver. quite old model probably of the starting 80's. when i switch on the unit the display light (which is a 12V bulb) turns on but at low intensity and the tuning led meter display has one first led on and then after some time the main display brightens and the tunig led goes of. Also only on channel works in the tape section while the amp is normal both in Aux mode and tuner mode. can some one suggest me a remedy to it. :(