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This is for 10 (ten) 6021 dual triode tubes. These are a bit lower gain than the 6112. The 6112 at 100 plate volts has a Mu of 70 (the performance of a 12AX7 at 250 plate volts) while this 6021 has a Mu of 35 at 100 plate volts (about that of a 12AY7). This 6021 would be great for a Mini Tweed era style amp front end or a really nice integrated amplifier for something like an iPOD. This tube is ideal for small amplifiers where a rugged nature, low power requirement and high performance are the goal. In the past there were octal preamp tubes from the 1950s and earlier. These gave way to the miniture tubes that are used today such as the 12AX7. These sub-miniature tubes have the same gain in reduced microphonics and increased reliability as the 12AX7 over it's larger brothers of the past when these are compared to a 12AX7. Using one of these as a front end (such as in a Fender tone stack arrangement) and a second one as the phase inverter with two of the 6205 pentodes in a class A/B arrangement will give a killer small amp. These are factory packed in original new boxes and not tested. These typically have a very high rate of being problem free. Very free from microphonics (these were used once in devices such as proximity fuses in artillery shells). See http://www.nj7p.org/Tube4.php?tube=6021 for more detailed specs and information. Checks or Money Orders are not accepted. These take time, and a trip to the bank. California state sales tax will be charged on all items sold within California unless you have a valid California resale license on file with us. (We do not proofread any ads submitted by members) |
catherine.cobb@desmoines-classifieds.com (Catherine Cobb) for more information. Your emails will be instantly forwarded to the poster's private address.
