Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

Realistic STA-225
#62

Try to first increase both 3-4 times in value at the same time. While not gaining any voltage gain you will gain input impedance so if you lack in it when for whatever reason your input is low it will give you some extra edge. If it is some other effect then...
Also depending on the result increase the top one twice as much as you increaee the bottom one. This will add voltage gain on top the impedance gain. Do some experiments.

Oh. R704 might need to change proportional to the R703, the bottom one. It is the feedback, and if kept the same, the total gain will drop with R703 increase.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.


Messages In This Thread
Realistic STA-225 - by Ron Ramirez - 12-23-2016, 10:09 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-23-2016, 10:14 PM
RE: Realistic STA-225 - by gregb - 12-23-2016, 10:17 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-23-2016, 11:24 PM
RE: Realistic STA-225 - by gregb - 12-23-2016, 11:42 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 12:11 AM
RE: Realistic STA-225 - by gregb - 12-24-2016, 01:25 AM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 09:56 AM
RE: Realistic STA-225 - by gregb - 12-24-2016, 01:20 PM
RE: Realistic STA-225 - by gregb - 12-24-2016, 02:17 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 04:24 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 06:42 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 09:20 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-24-2016, 11:16 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-25-2016, 11:16 AM
RE: Realistic STA-225 - by Mondial - 12-25-2016, 11:49 AM
RE: Realistic STA-225 - by Ron Ramirez - 12-25-2016, 05:01 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-26-2016, 07:52 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-26-2016, 08:08 PM
RE: Realistic STA-225 - by Mondial - 12-27-2016, 12:28 AM
RE: Realistic STA-225 - by Ron Ramirez - 12-27-2016, 06:59 AM
RE: Realistic STA-225 - by Mondial - 12-27-2016, 10:35 AM
RE: Realistic STA-225 - by Ron Ramirez - 12-27-2016, 08:18 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-27-2016, 08:51 PM
RE: Realistic STA-225 - by Mondial - 12-27-2016, 09:56 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-27-2016, 10:55 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-28-2016, 09:22 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-28-2016, 10:36 PM
RE: Realistic STA-225 - by Mondial - 12-28-2016, 11:26 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-29-2016, 09:04 PM
RE: Realistic STA-225 - by Mondial - 12-29-2016, 10:39 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-29-2016, 11:39 PM
RE: Realistic STA-225 - by Mondial - 12-30-2016, 12:10 AM
RE: Realistic STA-225 - by Ron Ramirez - 12-30-2016, 07:36 PM
RE: Realistic STA-225 - by Ron Ramirez - 12-30-2016, 08:19 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-12-2017, 01:27 PM
RE: Realistic STA-225 - by Mondial - 01-12-2017, 06:20 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-12-2017, 07:02 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-13-2017, 10:20 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 12:50 AM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 11:13 AM
RE: Realistic STA-225 - by Mondial - 01-14-2017, 01:14 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 04:16 PM
RE: Realistic STA-225 - by morzh - 01-14-2017, 10:04 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 10:45 PM
RE: Realistic STA-225 - by morzh - 01-14-2017, 10:49 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 10:52 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 11:04 PM
RE: Realistic STA-225 - by KCMike - 01-14-2017, 11:12 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-14-2017, 11:22 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-15-2017, 12:06 AM
RE: Realistic STA-225 - by sam - 01-15-2017, 02:53 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-15-2017, 04:39 PM
RE: Realistic STA-225 - by Eliot Ness - 01-16-2017, 09:44 AM
RE: Realistic STA-225 - by Ron Ramirez - 01-16-2017, 10:29 AM
RE: Realistic STA-225 - by morzh - 01-16-2017, 10:12 AM
RE: Realistic STA-225 - by Eliot Ness - 01-16-2017, 10:29 AM
RE: Realistic STA-225 - by morzh - 01-16-2017, 10:59 AM
RE: Realistic STA-225 - by Ron Ramirez - 01-16-2017, 11:36 AM
RE: Realistic STA-225 - by morzh - 01-16-2017, 12:47 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-16-2017, 08:19 PM
RE: Realistic STA-225 - by morzh - 01-16-2017, 09:21 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-18-2017, 11:31 AM
RE: Realistic STA-225 - by Ron Ramirez - 01-18-2017, 10:49 PM
RE: Realistic STA-225 - by morzh - 01-18-2017, 11:10 PM
RE: Realistic STA-225 - by PhilcoMike - 01-19-2017, 03:34 PM
RE: Realistic STA-225 - by Ron Ramirez - 01-19-2017, 08:12 PM
RE: Realistic STA-225 - by Eliot Ness - 01-20-2017, 09:59 AM
RE: Realistic STA-225 - by Ron Ramirez - 01-20-2017, 10:18 AM
RE: Realistic STA-225 - by morzh - 01-20-2017, 01:04 PM
RE: Realistic STA-225 - by morzh - 01-20-2017, 01:00 PM
RE: Realistic STA-225 - by Ron Ramirez - 04-26-2020, 10:04 PM
RE: Realistic STA-225 - by morzh - 04-26-2020, 10:19 PM
RE: Realistic STA-225 - by Ron Ramirez - 04-28-2020, 02:39 PM
RE: Realistic STA-225 - by morzh - 04-28-2020, 03:04 PM
RE: Realistic STA-225 - by Stall-U-Rated - 04-29-2020, 12:31 AM
RE: Realistic STA-225 - by Ron Ramirez - 04-29-2020, 08:59 AM



Users browsing this thread: 3 Guest(s)
[-]
Recent Posts
HiFi (Chifi) tube amp build - but my own design.
It's the other forum. I'm also in DIY, but mostly read there. Honestly, I kinda jumped into this without much thought to...TV MAN — 10:43 AM
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM

[-]
Who's Online
There are currently no members online.

>