UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Hope to start an audio amp with CV415/CV4046/TT15

Diabolical Artificer · 26th Aug 2020, 8:59 am

Try increasing the IP stage cathode resistor to get extra bass, I'm mucking about with my 807 amp at present trying to find the sweet spot where bass is juicy but not overwhelming, 100u is a tad too much, 10u not enough so next I'll try 25u and 47u. Often if you look at a lot of old amp designs they used 47u.

Keep up the good work, Andy.

26th Aug 2020, 8:59 am	#40
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,662	Re: Hope to start an audio amp with CV415/CV4046/TT15 Try increasing the IP stage cathode resistor to get extra bass, I'm mucking about with my 807 amp at present trying to find the sweet spot where bass is juicy but not overwhelming, 100u is a tad too much, 10u not enough so next I'll try 25u and 47u. Often if you look at a lot of old amp designs they used 47u. Keep up the good work, Andy. __________________ Curiosity hasn't killed this cat...so far.