Amptech Systems & TUBETVSHOP.COM
Thanks again, Earthlink Web Hosting, for disabling all the links on this page!!!
Vintage TV Accessories
NOTE: Accessories like the ones listed below were once sold in retail stores and readily available in virtually every town across America, but most stores no longer carry these items in stock and many store clerks are too young to remember what they are. If you've ever gotten that "You're looking for WHAT?" look from some teenage store clerk, you'll love that I'm offering a line of accessories that can be ordered from one convenient Web-based source. A $20 minimum order is required.
Antenna adaptors for connecting Dumont sets such as RA-103, RA-104, RA-109, etc. with "RCA jack" antenna inputs to 75-ohm standard coaxial "F" fittings have just arrived, brand new in factory-sealed packages. Part is available now, priced at $3.99 each plus shipping email me to order. Photo coming soon.
Antenna adaptor kit for connecting Dumont sets to 300-ohm "twin lead" antenna systems. Kit includes coaxial-input adaptor above to fit the Dumont set's "RCA jack" input, plus matching transformer with push-on 75-ohm input connection and screw-terminal 300-ohm input. Coming soon, brand new in factory-sealed packages. Kit will be priced at $5.99 each plus shipping email me to order. Photo coming soon.
Antenna adaptors for connecting vintage sets' 300-ohm screw-terminal input to 75-ohm standard coaxial "F" fittings are in stock, brand new. Priced at $1.99 each plus shipping email me to order. Photo coming soon.
Vintage-look "rabbit ears" antennas as above, but complete kit for use with Dumont sets. Coming soon, brand new in factory-sealed packages. Kits will include one each of "rabbit ears" antennas described above plus matching transformer and "RCA jack" adaptor. Kits will be priced at $11.99 each plus shipping email me to order. Photo coming soon.
Amptech Systems proudly introduces our line of reproduction sheet metal parts for vintage televisions. Quality construction and attention to detail are standard practices. We have a continuously-expanding line of parts such as back covers and high voltage cages. Here is our current line.
The first product in what we hope will become a vintage television media library. I have approached the copyright owner of a true icon of the vintage television era regarding the purchase of a limited license to use his artwork for video transcoding to DVD in consideration of a licensing fee and royalties. Perhaps at some later time, we can work together on this. Until then, my camera and CAD software have been pressed into service (with many thanks to my friend, Jamie Ralston, for the suggestion and to Angel, the family dog, for the photo-op).
Request a Part via Email (requires original part or dimensioned drawing)
We have established a working relationship with a Machine Shop specializing in "miniature" parts. Among parts which can be Repaired are Tuning Shaft and Detent assemblies for RCA models 621TS, 630TS, 630TCS, 641TV, 721TS, 721TCS, 730TV1, 730TV2, and 8TS30 (RCA part numbers 71463 and 72743 for RCA KCS-20 and KCS-26 chassis respectively). We had hoped to market actual Reproductions of these, however, we have been notified by the Machinists that prohibitive costs would be involved in reproducing the complex three-dimensional contours required for the Detent Plate part of these assemblies. Since failures of these assemblies rarely involve a need for replacement of the Detent Plate assembly itself, however, (typical failures involve Shaft or Spring breakage, parts which can indeed be fabricated and installed for reasonable cost), we will soon offer Repair Service for broken RCA Tuning Shaft assemblies 71463 and 72743 via a Machine Shop in our local area. Many other Control Shafts may also be candidates for Repairs or Reproductions. Email us for more information.
Research & Development
We are currently developing a product which will permit true portable use of "Three-Way Portable" tube radios while requiring no modification of the radios themselves. Due to different battery voltages and configurations, these units will need to be custom-built for radio models having a particular original battery complement and will not be interchangeable with any radio model which uses types and quantities of batteries different from those for which the unit was custom-built. For example, a power pack designed to power a radio using two 4.5V "A" batteries and two 67.5V "B" batteries would not work with a model using three 3V "A" batteries and two 90V "B" batteries since one or more characteristics (voltages, battery plug types, physical size) would differ between the two models. Pricing is to be determined after market research. The design of the power pack will be such that the DC-to-DC module and the pack of "AA" cells which power the module and the tube filaments would fit neatly into the battery compartment provided within the case of the radio for which it was made. Our goal is to develop the product so that a custom version for any Three-Way Portable device using "Dry-Cell" batteries and having "A" supply demands of 1.5V to 9V and "B" supply voltages from 45V to 150V can be easily constructed.
Send an email with comments/suggestions regarding this product idea. Please include as much information as possible (battery-complement information, voltages, Eveready type numbers, quantities used, and/or make and model number if you have a specific set in mind for a custom-fitted power pack.
Vector Three Replacement Ballast Tubes
We have completed development of our new Vector Three series replacements for hard-to-find Ballast Tubes used in certain Vintage TV models and application of similar technology to certain Antique Radio models which used Ballast Tubes or special power cords. (acquisition is in progress for applicable patents and trademarks related to the Vector Three products, which refers to a specific combination of improvements to existing technologies currently in non-commercial use). Our new Vector Three series Ballast Tube replacements develop 90% less heat than the single-use glass Ballast Tube replacements available on the Surplus market for Motorola part number 17A485459 and we also have a direct plug-in replacement for part number 7A470303 for which no current availability of Surplus replacements exists to the best of our knowledge; and our product is technician-repairable in case of future failure, unlike the sealed glass Amperite replacement for the 17A485459. Pricing remains "To Be Determined" although at least one client has already remarked that one repairable Ballast Tube could easily be worth the equivalent of as many as three or four non-repairable types whose future availability remains uncertain due to that availability being as Surplus / New Old Stock items. We will, however, do our best to achieve the ability to price our final product as competitively with the "disposable" type Surplus replacement part as possible. The Vector Three series are designed to operate simultaneously as a replacement Ballast Tube and as a tamper-resistant protective device for vital components of the Restored set in which it is intended to be used, and to provide visual indication of a Fault condition inside the set via a Fault Warning indicator light inside the Vector Three unit.
Service Literature may be ordered from:
Click the SAMS logo to search for your set's Service Literature
Send mail to email@example.com with questions or comments about this web site.
Last modified: 05/20/18