Pre-Owned + NOS Treasures Archives

ST-35 Pre-Owned amplifier (120) vac
Dynaco ST-35 Pre-Owned amplifier (120) vac including vintage Dynaco labeled tubes. Unit is all original and in good working order although a full restoration is suggested due to age of this unit. Previous owner drilled a number of small ventilation…
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Dynaco ST-70 AVA
AVA Audio by Van Alstine Ultimate ST-70 amplifier…. Our friend and associate Frank Van Alstine built this amplifier some number of years ago for the evaluation of AVA’s upgraded Ultimate circuit in conjunction with Dynakit’s new ST-70 audio transformers. This was a…
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(9) Pin Socket w/ shield collar
(NOS) Cinch brand Micalex socket with low profile shield collar. Chassis top mount style which fits 3/4″ hole with mounting screw holes on 1-1/8″ centers. Sorry, we do not have the shields for these sockets, however these will work fine…
~~$4.50~~ $3.50
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10K BIAS POT NOS
Clarostat Brand NOS Mil-Spec linear taper, 2 Watt, 10% Tol. carbon potentiometer. Extended slotted shaft, approximately 0.50″ length. Includes all mounting hardware & locking collar nut to fit 3/8″ diameter mounting hole. Excelent quality. (Limited Supply)
$15.00
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A-470 potted NOS
Very rare (NOS) pair of A-470 “Potted” output transformers. These will fit the original MK IV and ST-70 chassis mounting holes. One unit includes the original Dynaco packaging (box) and labeling whereas the second unit has been re-packaged in a…
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AR-4X Speaker Manual
Acoustic Research (18) page product catalog plus associated paper work regarding the AR-4X speaker system. Also includes (2) wall mounting hardware kits in the original factory manila envelope. Condition is Very Good. Price is $25.00 including US First Class shipping…
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Dynaco C-354 Chokes (NOS)
Dynaco orginal C-354 dc filter Choke. 1.75 Henries, 200 mA DC current, 62 ohms resistance, 400 vdc (Max) 10% tolerance. Limited quantity.
$40.00
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Dynaco FM-3 Lens
Dynaco NOS replacement tuner insert lens. Part # 834003. Limited quantity….Only one per order please.
$16.50
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Dynaco FM-3 Tuner Kit NOS
An “Unbuilt” Dynaco FM-3 Tuner Kit…Includes the original manual, packaging and box. I thoroughly checked all the contents of this kit and confirmed that every single item is included and correct. Nothing is missing! It is unlikely I will ever…
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Dynaco FM-3 Tuner Pre-Owned
Dynaco FM-3 Tuner… Fully tested and working flawlessly. Includes original Dynaco labeled tubes plus a very strong EMM801 tuning Eye tube. I was quite surprised at this tuner’s ability to capture several distant FM stereo broadcasts with just a simple dipole…
$150.00
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Dynaco labeled 7199 NOS tube pair
Very Rare NOS pair of Dynaco labeled 7199 tubes. RCA brand new old stock in original Dynaco labeled boxes. These will be sold as a “Pair” only. Price upon request.
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Dynaco MK III 70V Kit
This started out as a Factory built Dynaco MK III amplifier with the optional 70 Volt tap typically used for commercial PA or multi-speaker background music systems. This added tap makes this unit somewhat of a rarity although it still…
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Dynaco MK III Cover “Restored”
Original Dynaco MK III vented cover. Professionally stripped and repainted with our Brown durable textured polyurethane paint. A perfect computer color match to Dynaco’s original Brown color. Cover includes our Dynakit MK III foil label at no additional cost. Only…
$90.00
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Dynaco MK IV Cover “Restored”
Original Dynaco MK IV vented cover. Professionally stripped and repainted with our Brown durable textured polyurethane paint. A perfect computer color match to Dynaco’s original Brown color. Cover includes our Dynakit MK IV foil label at no additional cost. Only…
$85.00
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Dynaco MK VI Faceplate (NOS)
Dynaco MK VI Faceplate (NOS). Includes original handles, VU meter, power switch & fuse holder. Although difficult to see in the photo…..there is a scratch/scuff mark on the faceplate near the area of the power switch. This is hardly noticeable…
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Dynaco MK VI PC-44 (NOS) factory built boards
A pair of Dynaco PC-44 circuit boards as used in the Dynaco MK VI ….Boards are factory assembled and (NOS). Boards will be sold only as a pair. Call or Email us for price & availability.
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Dynaco MK VI Power Amps NOS
Extremely Rare….A pair of Dynaco Mark VI Professional Amplifier NOS kits in their original packaging. Every single component are in both these kits….I personally checked each & every item. It is rumored that less than 1000 pairs of these amplifiers…
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Dynaco PAS Cover “Restored”
Original Dynaco PAS cover. Professionally stripped and repainted with our Brown durable textured polyurethane paint. A perfect computer color match to Dynaco’s original Brown color. Cover purchase includes the stainless steel mounting hardware. Only One (1) cover available at this…
$42.00
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Dynaco SCA-35 Cover “Restored”
Original Dynaco SCA-35 vented cover. Professionally stripped and repainted with our Brown durable textured polyurethane paint. A perfect computer color match to Dynaco’s original Brown color. Cover purchase also includes the stainless steel mounting screws. We only have Two (2)…
$50.00
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Dynaco ST-35 Cover “Restored”
Original Dynaco ST-35 vented cover. Professionally stripped and repainted with our Brown durable textured polyurethane paint. A perfect computer color match to Dynaco’s original Brown color. Cover includes our Dynakit ST-35 foil label at no additional cost. Only One (1)…
$75.00
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Dynakit MK IV Chassis Blem
Early pair of prototype MK IV mirror finished stainless steel chassis that were punched in error with 1.25″ diameter tube socket holes instead of the standard Dynaco 1.125″ holes. Fortunately this is a common socket size and I have included…
~~$180.00~~ $160.00
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Magnequest MQ 060 NOS
Dynaco ST-70 (NOS) replacement power transformer made in the USA by Magnequest, Philadelphia, PA. This is an exact dimensional replacement for the original Dynaco PA 060 (117 vac) power transformer. High quality materials & workmanship in addition to high temperature…
$200.00
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MK III Bias Resistor (NOS)
Original MK III NOS precision bias resistors 11.2 ohms @ 1% tolerance. Part # 120110. Limited stock…Sold as pairs only.
$22.00
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Mullard NOS EMM801 Tube
Quite Rare Mullard EMM801 Magic Eye Tube as used in the Dynaco FM-1 & FM-3 Tuners. New Old Stock in original packaging. Only one (1) piece available.
$75.00
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P-782 PT (NOS) 120 / 240 vac
Rare Dynaco P-782 NOS dual voltage 120/240 vac Power Transformer. Leads were apparently shortened and stripped for installation by the former owner but I find no indication that this unit was ever used or installed in an amplifier. Unit is…
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P-782 PT (NOS) 120 vac
Original P-782 (NOS) 120 vac power transformer as used on the Dynaco MK III amplifier. Leads have been shortened by a previous owner but I find no indication that this was ever installed and/or wired into an amplifier. I currently…
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PA-135 PT (NOS)
Dynaco PA-135 NOS (120) vac power transformer. This is a later version of this transformer having the modern PVC leads as opposed to the early cloth lead version. Contrary to popular belief there is no audio magic associated with the…
$150.00
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PAS -2 Control Knobs
These are the smaller 7/8″ diameter control knobs as used on the early vintage Dynaco PAS-2 preamplifier. These are a “press on” style knob designed to fit the original Spline type shaft only. Condition is “used” but quite nice. These…
$12.50
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PAS knob set NOS
Very rare P/N 614065 NOS Dynaco PAS 3X aluminum control knob set. Includes original packaging, mounting hardware & allen wrench. Call or Email us for price & availability
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PC-3 Circuit Board (NOS)
Original (NOS) factory assembled PC-3 circuit board as used in the Dynaco ST-70 amplifier. Board has never been installed or used. Includes original mounting hardware.
$100.00
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PT 509 used
Dynaco PT 509 “Used” power transformer 117 vac. Removed from a working Dynaco FM3 tuner which was cosmetically challenged (Ugly). Most likely this can also be used in the FM2 tuner. Leads are supple and lengths suitable for reuse. $25.00…
$32.00
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RCA 7199 Tubes NOS
RCA labeled 7199 tubes made in the USA. (1968-1970) date of Mfg codes. Clear glass, black plate, Top “O” getter. All tubes measure a guaranteed minimum of 2500/2100 which is typical of NOS….Tubes are sold individually & packaged in DYNACO stamped…
$45.00
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Selenium Rectifier
Original Dynaco (NOS) Selenium Rectifier Part # 544042 as used in the ST-70 and other model amplifiers.
$6.50
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ST-35 Pre-Owned amplifier (120) vac

Dynaco ST-70 AVA

(9) Pin Socket w/ shield collar

10K BIAS POT NOS

A-470 potted NOS

AR-4X Speaker Manual

Dynaco C-354 Chokes (NOS)

Dynaco FM-3 Lens

Dynaco FM-3 Tuner Kit NOS

Dynaco FM-3 Tuner Pre-Owned

Dynaco labeled 7199 NOS tube pair

Dynaco MK III 70V Kit

Dynaco MK III Cover “Restored”

Dynaco MK IV Cover “Restored”

Dynaco MK VI Faceplate (NOS)

Dynaco MK VI PC-44 (NOS) factory built boards

Dynaco MK VI Power Amps NOS

Dynaco PAS Cover “Restored”

Dynaco SCA-35 Cover “Restored”

Dynaco ST-35 Cover “Restored”

Dynakit MK IV Chassis Blem

Magnequest MQ 060 NOS

MK III Bias Resistor (NOS)

Mullard NOS EMM801 Tube

P-782 PT (NOS) 120 / 240 vac

P-782 PT (NOS) 120 vac

PA-135 PT (NOS)

PAS -2 Control Knobs

PAS knob set NOS

PC-3 Circuit Board (NOS)

PT 509 used

RCA 7199 Tubes NOS

Selenium Rectifier