Foxtrot 9 Audio 'Trick-Shot' Custom WE437 / 6S45P-E Single Ended Stereo Amplifier
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Payment methods | Contact seller |
Contact seller after sale to pay viaCertified check or Wire Transfer | |
Ships from | Centennial, CO, 80122 |
Ships to | United States |
Package dimensions | 19.0" × 19.0" × 12.0" (26.0 lbs.) |
Shipping carrier | USPS |
Shipping cost | Log in to see price |
Average | Research Pricing |
The Trick-Shot 6S45P-E / WE 437A Amplifier is ready for a permanent home. This has been a fun project for me, and exceeded all expectations for performance. The design and build process is pretty well documented on my wordpress site here:
http://foxtrot9audio.wordpress.com/trick-shot-we437-6s45p-e-amplifier/
The Slicksheet Details are as follows:
- 1 watt per channel Single Ended 6S45P-E or 6S15P Triode Stereo Amplifier. WE437A supported via adapter.
- 60Kohm input impedance
- UTC Grid Chokes
- LED bias
- Tamradio (Tamura) Output Transformers.
- 4/8/16+ ohm speaker compatibility.
- THD (1KHz @ 1 Watt RMS) = 0.715%
- Frequency Response (@ 1 Watt RMS): 20Hz to 20Khz +0.0/-1.0dB
- Western Electric Cloth Wrapped Wiring.
- CLCRC Power supply filtration.
- High Frequency mitigation in both signal chain and power supply.
- AC heater filaments
- No measurable or audible power supply hum.
- 120 or 220 V line input
- Fused primaries
- Separate Chassis and signal grounds w/ ground lift switch
- Stainless Steel Fastening Hardware
- Heavy gage Aluminum Chassis
- Heat Cured Epoxy paint
- Clean point to point wiring
- Padouk Face panel.
- Common cathode bias meter.
Tube cathodes have a ferrite block, and each of the pair of grid pins has a separate grid stopper resistor. Wiring is clean and logically routed to avoid noise and hum pickup and interaction. Heaters are AC, with a 100 ohm reference back to the ‘clean’ ground.
I also credit a good portion of the sonic mojo to the grid chokes used in place of grid leak resistors – compared to other iterations of this circuit that I have built that did not implement grid chokes, this one just has a bit more air and soundstage.
The esthetics of the system came out pleasing to the eye as well. I wasn’t sure about the red Padouk faceplate contrasting with the darker chassis tones, but once it was mounted with the current meter installed, I knew it was going to work. I like minimally processed wood finishes that build character with time. This one came straight off the planer and was treated to a single light application of IPA followed by a stretched application of flat tung oil. This ensures it will continue to patina as it ages, taking on a darker and richer hue.
This has been my main reference amp since summer, but with the weather driving me back indoors for the winter, it is coming time to say goodbye to this faithful friend to fund the next project.
The amp ships as new in plug and play condition. Includes 1 pair of generic Soviet era 6S45P-E triodes and a new IEC power cord. Buyer is responsible for actual postage and insurance. I will cover new and substantial packaging supplies.
I accept just about any rational form of payment, including Paypal. Since I don't have the trust level with Paypal (or Audiogon, for that matter) to give them unfettered access to my bank account, I cannot offer Paypal integrated within this listing, and will have to invoice you for Paypal and credit cards separately.
I am always happy to correspond and answer questions via email @:
[email protected] mailto:[email protected]
http://foxtrot9audio.wordpress.com/
Thanks for looking!
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