From: "Saved by Internet Explorer 11" Subject: Dynaco Push-Pull EL84/6BQ5 or 6V6/6AQ5 Tube Amp Schematic Date: Thu, 12 Feb 2015 15:21:54 -0800 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0035_01D046D7.A25189B0" X-MimeOLE: Produced By Microsoft MimeOLE V6.1.7601.17609 This is a multi-part message in MIME format. ------=_NextPart_000_0035_01D046D7.A25189B0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Location: http://diyaudioprojects.com/Schematics/Push-Pull-EL84-6BQ5-6V6-6AQ5-Dynaco-A-410-Tube-Amp-Schematic.htm
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The EL84 (6BQ5) / 6V6 Push-Pull tube amplifier schematic and text = below is=20 from the Dynaco Super-Fidelity Output Transformers catalog circulated = around=20 1955.
"Figure 3 illustrates a low power circuit (12 watts at less than 1%=20 distortion) which is similar to that used in many of the medium priced=20 commercial amplifiers. Either EL84/6BQ5 or tubes of the 6V6 and 6AQ5 = type can=20 be used in this configuration with the Dynaco A-410 transformer (8000 = ohms CT).=20 The use of this super-fidelity transformer in commercial grade equipment = makes a=20 substantial improvement in transient response as well as drastically = lowering=20 the distortion. Most commercial amplifiers can be greatly improved = merely by=20 direct substitution of the Dynaco A-410 for amplifiers of the 6V6 type." =
The power supply uses a 5Y3 tube rectifier and a C-R-C filter. More=20 information about tube power suppies is available in the Power= =20 Supply Design for Vacuum Tube Amplifiers article.
For an application of this push-pull tube amplifier schematic using = 6SL7 and=20 6V6 tubes, see Brad's 6SL7=20 driver, 6V6 push-pull DIY tube amplifier build.
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