Please check the condition of the item in the photos. New – Unused – Excellent – Very Good – Good – Acceptable Condition: Good. You cannot change your address after placing an order. Package: We will carefully pack your order in a box or envelope. We will not respond to unreasonable requests for gifts or declared amounts.
The make, model, and country of production are all unknown, but this vintage vacuum tube radio has been restored and serviced and is in perfect working order. This is a vintage vacuum tube radio of unknown maker (the power transformer is labeled “SEIDENSHA RADIO WORKS / MELODY”), which has been restored, serviced, and is in perfect working order. In order to give life to the item again, we have restored it to its original condition as it was when we first acquired it (electrical surgery), and we are auctioning it in the hope that it will be rehabilitated and put back into society. The exterior case is coated with oil stainless steel and varnished in the same color to bring out the grain of the wood, and although there are some signs of use due to the passage of time since it was first acquired, such as the missing back cover, there are two substitute dial knobs, and the speaker cloth (cloth) has been reupholstered and replaced. The tubes used are old ST tubes “UY-56 / UX-26B / UX-26B / KX-12F”, 4 tubes in total. The dials are operated by a “power switch” on the left side of the case, and “for main varicons / for playback varicons” from the top of the right front part. The main restoration work this time was to restore the chassis to its original state by removing rust with a scraper, applying oil stainless steel, and varnishing, The power switch had poor contact, which was repaired by applying contact resurrection agent / Replaced the power cord with outlet, speaker cord, and pilot lamp cord / Repaired the center heater bias wires of two UX-26Bs supplied from the power transformer, which were broken in the middle / The power supply choke coil was broken, and a 3K? /4W type resistor was installed / A 3K? /4W type resistor was installed and restored / A 1:3 step-up transformer was disconnected between B and P, so an equivalent transformer was installed / One UX-26B was in NG condition, so it was replaced with a good condition product / An electrolytic capacitor was in NG condition, so a new 22? F 450V x 2 was replaced / A horseshoe speaker was in NG condition, so a new 22? F 450V x 2 was replaced / A 1:3 transformer was in NG condition, so it was replaced with a good condition product. 2 new 22? F 450V speakers / The horseshoe speaker was missing, replaced with a new one in good condition / Removed the antenna coil, checked all the cords and replaced the wiring coverings / Installed the appropriate resistors and adjusted the plate voltage of each vacuum tube / The space between the varicon fins was corroded, cleaned the space between the fins and adjusted the position of the shafts. The shaft position was adjusted and the condition was restored. The inside of the chassis has been cleaned as well. Please check the condition of the item in the photos. New – Unused – Excellent – Very Good – Good – Acceptable Condition: Good. You cannot change your address after placing an order. Package: We will carefully pack your order in a box or envelope. We will not respond to unreasonable requests for gifts or declared amounts.
The power cord is broken and cracked (its really brittle and falling apart). The alligator style skin is coming apart as shown in the photographs. The handles are also in really rough shape. This would make a nice candidate for a restoration project. Superhet with RF-stage; ZF/IF 455 kHz. Power type and voltage. Line / Batteries (any type) / 117/ 90 & 9 Volt. Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil). Leather / canvas / plastic – over other material. Admiral brand Continental. Portable set > 8 inch (also usable without mains). 13.5 x 11.5 x 6.5 inch / 343 x 292 x 165 mm. Built in loop antenna. Stunning leahterette case of simulated alligator. Operates on self-contained batteries or AC-DC. Palm tree design metal mesh over speaker. Collector’s Guide to Antique Radios 4. Please view photos for best details of product. Message me for a fast response.
Vacuum Tube FM Radio Vintage Audio Valve Stereo Receiver DIY/ 6N3/6N1/6K4/6J4. Circuit structure, design principle. This machine belongs to the typical super-external difference radio, using a circuit board design form, including high-frequency reception, mid-frequency amplification, limiting, frequency discrimination, stereo decoding, preamplification and other circuits, the output is a stereo signal, which can be connected to a variety of types of tube power amplifiers, active speakers, stereo equalization amplifiers and other equipment. Specific circuit configuration is as follows: high-frequency reception using dual triode 6N3 to do high-frequency amplification and mixer amplification, dual triode 6N1 to do the local oscillation. Mid-frequency amplification using two-stage pentode 6K4, two-stage limiter, using pentode 6J4, phase frequency identification, stereo decoding using TA7343 (the latest version has been changed to LA3401), the decoded audio signals are switched to double triode 6N2 after conversion switch for 5 times the preamplification, the output of audio signals. Second, the machine highlights This machine has a light weight, high reception sensitivity, the use of electronic tubes to receive FM signals, with a strong sense of nostalgia, the sound sweet, mellow, the use of potentiometers and varactor diode tuning, to solve the need to use the air capacitor to do the trouble of pulling the line system, while the use of digital tubes to display the receiving frequency, the use of 6E2 to display the strength of the received signal to increase the visibility, the ornamental nature. The use of mesh cover design, you can avoid the children at home accidentally touch the scalding. The panel is oxidized by CNC machining, and the shell is made of stainless steel bending and welding. The knob is also CNC processed and polished, high-end atmosphere, the whole machine circuit board is made of 2mm thick PCB, increasing the mechanical strength, not easy to damage. Third, the machine parameters: Receiving band range: FM87-108MHz. Power supply voltage: 110V/220V Number of channels: 2, stereo. Machine power consumption: about 100W. Net weight: about 24Kg Receiving form: super-aberrant type. Four, the machine important components Power transformer, electronic tube, high-voltage filter capacitors, tuning resonance inductor, varactor diode, etc. Please leave note for your special request e. Please do NOT leave negative or neutral feedback without any contact. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you.
NEW Vacuum Tube FM Radio Vintage Audio Valve Stereo Receiver DIY/ transformers. This machine is not designed shell, enthusiasts need to use their own imagination to design their own shell. Due to the air four. Electron tube are not new production, are brand new inventory goods, please mind the friends detour. A circuit structure, working principle. This machine belongs to the typical super-aberrant radio head, high sensitivity, using electronic tubes to receive FM signals, with a strong sense of nostalgia, the sound sweet, mellow, and. The use of quadruple air capacitor tuning, is a lot of older people’s youthful feelings, the entire circuit board is made of 2mm thick PCB, increasing the mechanical strength, not easily. The entire circuit board is made of 2mm thick PCB, increasing mechanical strength and not easy to be damaged. This machine adopts a whole circuit board design design form, including high-frequency receiving, frequency conversion, IF amplification, limiting, frequency identification, stereo decoding, buffer amplification circuit, the output is a stereo amplifier. Large circuit, the output is stereo signal, can be connected to various types of tube power amplifiers, active speakers, stereo equalization amplifier and other equipment. The specific circuit configuration is as follows: high-frequency reception using dual transistor 6N3 to do high-frequency amplification and mixer amplification, dual transistor 6N1 to do the local oscillation. Mid-frequency amplification using two. The mid-frequency amplifier adopts two-stage pentode 6K4, and the limiter and frequency discriminator adopts pentode 6J4. The stereo decoding is done by LA3401, and the decoded audio signal is fed into the double triode 6N 2 for 5x amplification. After decoding, the audio signal is sent to dual triode 6N 2 for 5 times preamplification, and the stereo audio signal is output through dual RCA terminals. The quality of this machine components are carefully selected out, especially the electric. Decoder capacitors are imported black diamond or South Korea’s brand, have been tested by the voltage tester, we can rest assured that the use. Second, the use of steps. Of course, if you want to receive more radio signals, you must use an external omni-directional outdoor antenna, impedance is 75? . Please make sure that the wiring is correct, can not be wrong! From left to right wiring order is as follows. Brown – brown (11V); green – green (230-230V); blue – blue 6.3V; black – white. The two yellow (6.3V) wires are left unconnected and insulated by wrapping them in tape, so as not to short them out. The remaining two red are power cords, connected to the socket, this machine uses 220V. 3? Use RCA audio connecting cable to connect the audio output terminal of this machine with the audio input terminal of your home amplifier. 4? Turn on the power switch, the indicator light will be on, wait for about 20 seconds and then you can listen to the radio station. Rotate the tuning knob, you can select different radio signals. 5, the use of the process should be installed in the circuit board in their own design inside the shell, and the machine from the ground to have the appropriate height, remember to account for the age of children are not allowed to touch the electronic tubes and other components of the machine. Remember to explain not to allow young children to touch the machine tubes and other components, so as not to cause safety accidents! Third, the use of the process of possible problems and solutions. 1, the machine does not work, check whether the socket power? 2, the sound is small, murmur, check whether the antenna is bad? 3, there is a periodic murmur, check whether the machine around the high-frequency equipment in the work produced by the interference? Please leave note for your special request e. Please do NOT leave negative or neutral feedback without any contact. We care about our valued buyers, if you have any questions, our Customer Service staffs will be very glad to help you.
We have not checked the operation and are not sure if it works properly. Also, it is very old and has many stains and scratches. It may be better for someone who does not mind dirt, etc.
This is a vintage vacuum tube radio of unknown maker. In order to give the product another life, we have restored it in the same condition as when it was first acquired (electrical surgery), and we are auctioning it in the hope that it will return to society anew. We hope that you will understand and accept this item for sale. The exterior case, which makes the most of the wood grain by applying oil stain and varnish of the same color, is in good condition with two dial knobs and back cover, although there are some signs of use due to the passage of time. The speaker was originally a horseshoe speaker, but due to coil disconnection, a “permanent speaker (GENERAL PD-50108) and output transformer” in good condition were installed. The speakers were originally horseshoe speakers, but due to a broken coil, a permanent speaker (GENERAL PD-50108) and output transformer were installed, and a wooden pedestal was newly made due to the change in the speaker diameter size. The dials and other controls are located on the left side of the case, and the upper part of the front case is for the main varicontroller and the lower part for the playback varicontroller. The main restoration work this time is replacement of power cord & speaker cord for safety consideration, replacement of electrolytic capacitor with new 22? F 250V x2 / 10? F 50V x1 (since it was in NG condition), replacement of relay lugs to restore the condition, re-soldering of 3 to 4 soldered-out parts, and re-soldering of each of the varicon and other parts. Soldering / Oil and maintenance are performed to each circumference part such as varicon / “Radio (upper) – PU (lower) switch and external input PU terminal” are added on the upper left side of the back cover Mono sound, but you can listen to audio from CD, iPhone, etc. / Please adjust audio etc. By the additional device side. And made it a fully functional product. How about listening to the nostalgic sound of a vintage vacuum tube radio of unknown maker? The size is 34.5cm wide / 24cm high / 20cm deep, and the weight is about 4Kg. Please check the condition of the item in the photos. New – Unused – Excellent – Very Good – Good – Acceptable Condition: Good. You cannot change your address after placing an order. Package: We will carefully pack your order in a box or envelope. We will not respond to unreasonable requests for gifts or declared amounts.
