|Analogue Source Turntables, Tonearms, Cartridges, Phono Stages, Tuners, Tape Recorders, etc.|
Please consider donating to help us continue to serve you.
Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
||Thread Tools||Search this Thread|
|17th February 2011, 11:52 AM||#1|
Join Date: Sep 2008
Here is part of Kenwood C2 preamp schematic. This particular flat amp seems to limit/clip input signals with levels exceeding 500mV. This number is an estimate since at the moment I do not have an access to test equipment. It appears not to limit signals with "consumer" levels of -10db. However anything above -4db is clipped. Clipping is symmetrical as far as I can see in the wave editor.
The components are:
Q5, Q6 - uPA68H
Q7-Q10 - 2SC1845F
IC2 - NJM2041.
Supply voltage is +/- 18VDC. All DC voltages are as referenced in schematic. Seems to me it is something relating to BJTs in cascode. Just can not grasp it.
Any idea, please?
|Thread Tools||Search this Thread|
|Thread||Thread Starter||Forum||Replies||Last Post|
|Recovery from clipping, soft clipping||hahfran||Solid State||49||23rd February 2010 01:03 AM|
|How do I turn an high current signal into a line level signal??||sardonx||Tubes / Valves||8||27th August 2005 11:16 AM|
|Creating a differential signal from a single-ended signal for bridged amps||Peter Daniel||Chip Amps||45||8th November 2004 12:47 PM|
|V/I Limiting||richie00boy||Solid State||17||29th August 2004 03:25 AM|
|Hard clipping a guitar signal||Skankadellic||Instruments and Amps||4||22nd January 2004 02:29 AM|
|New To Site?||Need Help?|