Herron Audio VTPH-1mc TUBE PHONO PREAMP, EXCELLENT CONDITION

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HERRON AUDIO VTPH-1MC

TUBE PHONO PREAMP

FOR MOVING COIL

NEAR MINT CONDITION

This HERRON AUDIO VTPH-1MC is in NEAR MINT condition. It looks EXCELLENT, operates PERFECT and sounds GREAT.

This unit was purchased by its original owner in early 1999. He passed away 10 years ago and it has been in storage ever since. The tubes are original and test well – they have many hours remaining.

Please examine the photos – they are part of the description.

This unit includes its owner’s manual – it does NOT include its AC power cord.

The VTPH-1’s tubes---four 12AX7WBs, one 12AT7WC---are run using the same "distortion-canceling arrangement" found in the Herron’s preamp. The VTPH-1 uses no global feedback. Its low-loss, passive RIAA equalization filter was designed with the aid of a computer and Herron's ears.

This MC version's FET front end, is constructed on a small circuit board fastened to the input jacks and grounding post, consists of a single, zero-feedback, low-noise amplifier with 22dB gain---said to be sufficient for even the lowest-output (below 100µV output) cartridges. Yet it can, according to Herron, accept the 4mV output of a Shure V15VxMR without overload.

The main circuit is laid out on a large, double-sided circuit board. The VTPH-1MC uses star grounding, which means every signal ground has an independent path to a central ground point. The power supply provides a rigid voltage supply to the tubes and features a separately regulated tube bias supply, four levels of high-voltage regulation, a regulated soft-start DC filament supply, and 78,000µF of energy storage.

SPECS:

Tube complement: four 12AX7WB, one 12AT7WC. Frequency range: 1Hz->100kHz. RIAA accuracy: 20Hz-20kHz, ±0.1dB. Voltage gain: 66dB at 1kHz (44dB, moving-magnet version), channels matched to within 0.05dB. Input sensitivity: N/S. Signal/Noise: 80dB, A-weighted, inputs shorted, AC polarity set. Distortion: N/S. Output impedance: 500 ohms unbalanced. Input impedance: 47k ohms, 100pF

The buyer is responsible for all shipping charges. This item will be insured for the full final auction price.

PLEASE NOTE: I will ship this item almost anywhere, but I do not research transportation costs. If you are interested in this unit, you will need to do the research. The shipping carton weighs 13 pounds and measures: 20 inches by 18 inches by 7 inches. My postal code is 91723.

This unit is being sold without a warranty.

This unit operates with 120 volts AC. Buyers from outside of the United States should know in advance that ProfessorMike does NOT change operating voltages, but that may be accomplished by a qualified technician once the unit has been purchased.

I will accept payments through PayPal OR cash upon pick up for this item if the buyer has an Audiogon rating of 100%.

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