Vintage Homebrew Geloso G. 4/102 VFO Amateur Tube Radio Transmitter – Untested. Offered is a vintage custom-built amateur (“homebrew”) tube radio transmitter believed to date from the mid-1950s to early 1960s. The centerpiece of this unit is the highly desirable Geloso G. 4/102 Variable Frequency Oscillator (VFO) tuning assembly, one of the most recognized amateur radio tuning systems of the era. The large illuminated-style frequency dial covers the classic HF amateur bands including 80, 40, 20, 15, and 10 meters, making it immediately recognizable to vintage ham radio collectors. Unlike factory-produced equipment, this is a hand-built amateur radio project assembled using quality period components, including a Lafayette milliamp meter, heavy steel chassis, multi-position controls, and the original Geloso tuning mechanism. During the 1950s and 1960s many experienced radio operators built their own transmitters around Geloso VFO units because of their excellent frequency stability and performance. Every homebrew radio is unique, making surviving examples increasingly collectible. No attempt has been made to power the unit. Cosmetic wear consistent with age. Scratches, oxidation and paint wear present. Appears to be missing one front-panel control/component. Exact builder and circuit configuration are unknown. Please examine all photographs carefully as they are part of the description. 4/102 VFO tuning assembly. Classic amateur radio frequency coverage. Large analog frequency dial. Excellent restoration or display candidate. Whether you’re restoring vintage amateur radio equipment, collecting homebrew transmitters, or looking for original Geloso components, this is an uncommon piece of mid-century amateur radio history. Brand: Geloso (VFO Assembly). Type: Homebrew Amateur Radio Transmitter. Bands: 80m, 40m, 20m, 15m, 10m. Features: Variable Frequency Oscillator (VFO). Country/Region of Manufacture: Custom Built. Condition: Untested / As-Is. Built around the sought-after Geloso G. Dates to approximately the mid-1950s. Represents the golden era of amateur “homebrew” radio construction. Professionally fabricated front panel and heavy-duty chassis. Excellent candidate for restoration or parts. Geloso G4/102, Geloso VFO, Homebrew Ham Radio, Amateur Radio Transmitter, Tube Radio, Vintage Ham Equipment, HF Transmitter, Shortwave Radio, Vacuum Tube Radio, Amateur Radio Station, Ham Shack, Geloso Oscillator, 1950s Electronics, Vintage Communications Equipment, Radio Restoration, Antique Amateur Radio.

Johnson Viking Challenger tube ham radio transmitter in clean original cosmetic condition. Interior appears largely complete with strong vintage presentation. Excellent piece for ham radio enthusiasts and tube radio collectors. #HamRadio #VintageRadio #BoatAnchor #TubeRadio #EFJohnson #AmateurRadio #VikingChallenger #CWRadio.

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!

Item is untested and as is. Please see all photos provided. Measurements are 13.5×9.5x5ish inches. Again the photos are the best description I can provide. I’ll try to answer questions. New items added daily. We have other radio stuff available.

I have found very little about this piece. Made by Marti Electronics it is a model 25C, I believe it is a transmitter. The tag also reads M-25C / MR-30 / 150-170. 15 vacuum tubes in the unit. All look to be original vintage, I see many of the Bugle boy ones installed. It has a Turner Carbon Microphone attached. This came from a local radio station. This unit was hooked up on a rack mount. Now I have no way to test so I have to sell it as I found it. Pretty cool old piece. Please check over the photos. Thank you for looking.

Wirelessly stream audio to that old antique or vintage radio with your very own, in house, MicroMitter! No installation or alterations to your vintage set required. It’s also portable, takes a single 9v battery, with ultra low power consumption, so you can use it, on the go, with a vintage vehicle or portable set as well. Live rural and don’t have any stations within range? Even better; start your own! Unit comes with an internal Bluetooth adapter, short antenna wire and detailed instructions.

Please Check Out Our Store. We Have Over 2000+ Listing and Are Adding More Daily! 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 Experience!