Vintage Tube Amp

Vintage EICO HF-12 12-watt mono tube amplifier, previously modified from its original hi-fi configuration for apparent guitar/instrument amplifier use. This is an interesting restoration or further-conversion project for a tube guitar amplifier builder or vintage audio enthusiast. CURRENT CONFIGURATION – Original EICO HF-12 chassis, enclosure and transformers. Original four-position input selector removed and replaced with a front-mounted 1/4-inch input jack. Three remaining front controls: volume, bass and treble. Original rear audio inputs removed. Rear 1/4-inch speaker output jack added. Original speaker terminal strip remains, with altered connections. The 8-ohm terminal is presently unwired. Original decorative front faceplate is missing. Replacement Mallory electrolytic capacitors installed. Three-prong grounded-style power cord installed, but protective grounding has not been verified as satisfactory. Other previous wiring and component changes are visible. ELECTRICAL TESTING PERFORMED The amplifier has NOT been powered up or audio-tested. Resistance and continuity measurements were performed with a multimeter. Output transformer: – Primary end-to-end: approximately 341 ohms – Primary halves: approximately 187 and 154 ohms – Secondary G-4? : approximately 0.9 ohms – Secondary G-16? : approximately 1.3 ohms Power transformer: – Primary: approximately 40 ohms – Heater winding: approximately 0.4 ohms – High-voltage secondary: approximately 205 ohms total – High-voltage secondary halves: approximately 105 and 98 ohms No open windings were identified in the circuits measured. These are resistance/continuity measurements only and do not establish transformer performance under operating conditions. IMPORTANT ELECTRICAL CONDITION The three-prong power cord was checked for continuity between its grounding pin and the metal chassis. Meter lead resistance: approximately 0.2 ohms – Grounding pin to chassis: approximately 2.5-2.7 ohms The protective chassis-ground connection requires further inspection and verification. The power wiring, capacitors, previous modifications and overall electrical safety have not been fully evaluated. DO NOT CONNECT TO AC POWER UNTIL PROPERLY INSPECTED AND SERVICED BY A QUALIFIED TUBE-AMPLIFIER TECHNICIAN. RESTORATION POTENTIAL The EICO HF-12 originally used a push-pull EL84/6BQ5 output stage rated at 12 watts in its factory configuration. The existing instrument-style conversion offers an interesting starting point for a vintage guitar amplifier project. Actual instrument input characteristics, operating condition, output power and sound have not been verified. The amplifier could also be considered for restoration toward its original hi-fi configuration. This would require sourcing missing controls, connectors and faceplate components, tracing the wiring and making appropriate circuit repairs. Not represented as a working or electrically safe amplifier. Includes the amplifier and installed components as photographed. No additional accessories are represented as included. Please review the detailed photographs of the chassis, underside wiring, transformers, controls and connections.

This item was found in an abandoned storage unit and is untested. Please see pictures for condition and contents. The projector is very cleam and has the power cord.

This item was found in an abandoned storage unit and is untested. Please see pictures for condition and contents. The projector is very cleam and has the power cord.

VINTAGE FENDER SUPER TWIN 2X12 TUBE GUITAR AMPLIFIER 180W USA PROJECT PARTS REPAIR. For sale is a vintage Fender Super Twin 2×12 tube guitar amplifier, made in the USA. I have not attempted to power it on, and no testing has been performed. As shown in the photos, two of the six power tubes are missing, and only one 12-inch speaker is installed. The amplifier is otherwise believed to be complete, and the original transformers appear to be present. Due to its unknown operating condition, I cannot guarantee functionality of any components. Two power tubes are missing and bases are covered. Only one 12 speaker is included. Original transformers appear to be present. Heavy cosmetic wear consistent with age and use. Cabinet shows scratches, scuffs, stains, nicks, and other signs of long-term use and storage. Tolex has tears, peeling, and loose sections that will need to be re-glued or repaired. Fender Super Twin tube amplifier. No footswitch, pedals, cover, manual, or any other accessories are included. 2×12 combo cabinet (one speaker currently installed). Rear panel rated at 180 Watts RMS with High/Low power switch. Approximate weight: 63 lbs. This is an excellent candidate for restoration or repair, or as a donor for valuable vintage Fender components. The amplifier retains what appears to be its original transformers and is being offered exactly as found. However, a very safe and affordable option within the US is to use uship. Com. For Items listed in working condition, they have to be tested on arrival, if there is any significant difference with the description, contact me immediately. I do my best to describe the items as accurately as possible but I may miss some details or have variance in opinion regarding item condition. Please ask any and all questions you may have regarding this item to ensure your satisfaction. I will issue feedback once I receive it and know item has arrived.

This item was found in an abandoned storage unit and is untested. Please see pictures for condition and contents. The projector is very cleam and has the power cord.

VINTAGE FENDER SUPER TWIN 2X12 TUBE GUITAR AMPLIFIER 180W USA PROJECT PARTS REPAIR. For sale is a vintage Fender Super Twin 2×12 tube guitar amplifier, made in the USA. I have not attempted to power it on, and no testing has been performed. As shown in the photos, two of the six power tubes are missing, and only one 12-inch speaker is installed. The amplifier is otherwise believed to be complete, and the original transformers appear to be present. Due to its unknown operating condition, I cannot guarantee functionality of any components. Two power tubes are missing and bases are covered. Only one 12 speaker is included. Original transformers appear to be present. Heavy cosmetic wear consistent with age and use. Cabinet shows scratches, scuffs, stains, nicks, and other signs of long-term use and storage. Tolex has tears, peeling, and loose sections that will need to be re-glued or repaired. Fender Super Twin tube amplifier. No footswitch, pedals, cover, manual, or any other accessories are included. 2×12 combo cabinet (one speaker currently installed). Rear panel rated at 180 Watts RMS with High/Low power switch. Approximate weight: 63 lbs. This is an excellent candidate for restoration or repair, or as a donor for valuable vintage Fender components. The amplifier retains what appears to be its original transformers and is being offered exactly as found. For Items listed in working condition, they have to be tested on arrival, if there is any significant difference with the description, contact me immediately. I do my best to describe the items as accurately as possible but I may miss some details or have variance in opinion regarding item condition. Please ask any and all questions you may have regarding this item to ensure your satisfaction. I will issue feedback once I receive it and know item has arrived.

This item was found in an abandoned storage unit and is untested. Please see pictures for condition and contents. The projector is very cleam and has the power cord.

This item was found in an abandoned storage unit and is untested. Please see pictures for condition and contents. The projector is very cleam and has the power cord.

I have a Vintage Precision Electronics model 20 PA Amplifier. With a Cairad 400-0 Microphone and 20 inch Jenson Hypex University PA loudspeaker Model D-30. These items are untested they belonged to my great Uncle who had a traveling staketing rink he took to mining camps in KY for years.

I do a lot of business with them and they always have well cared for gear. Not saying it won’t need adjustments but, it looks like a nice clean unit. Everything you see in the pictures is what is included in this lot. Photos are the best description. Please look at all pictures closely before purchasing. We will document any damage the best we can but the photos will always be the best way to exam the item. Items may need a more in depth cleaning. We will do our best to clean every item, although sometimes we can’t do a full thorough clean. Message us for additional photos or questions. We of course will get them out as fast as we can. We will help resolve whatever issue you are having. We try very hard to provide good communication and always strive for everyone to have a positive experiences!