Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Audio and Video Talk
Valves / Vacuum Tubes
Valves: Pioneer SX410 - 6BM8; Rogers HG88 mkIII - ECL 86
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support AVForums:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Ampdog" data-source="post: 220673" data-attributes="member: 144"><p>Supergrand,</p><p></p><p>Going on from there, I looked up the schematic of the Rogers. The ECC807 is used as a voltage amplifier, so no serious difference if you rewire for ECC83. The print was not good; I could not read all component values, but you might have about 30% less gain with an ECC83, and perhaps some resistor changes. The main problem would be rewiring the valve socket. Not included in the info was whether it is located on a p.c. or hard wired. In the former case rewiring might not look too good.</p></blockquote><p></p>
[QUOTE="Ampdog, post: 220673, member: 144"] Supergrand, Going on from there, I looked up the schematic of the Rogers. The ECC807 is used as a voltage amplifier, so no serious difference if you rewire for ECC83. The print was not good; I could not read all component values, but you might have about 30% less gain with an ECC83, and perhaps some resistor changes. The main problem would be rewiring the valve socket. Not included in the info was whether it is located on a p.c. or hard wired. In the former case rewiring might not look too good. [/QUOTE]
Insert quotes…
Verification
Post reply
Audio and Video Talk
Valves / Vacuum Tubes
Valves: Pioneer SX410 - 6BM8; Rogers HG88 mkIII - ECL 86
Top