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About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

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AirplanesAndRockets.com

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Innovative Power Products Couplers

Vintage Heathkit GR-48 AM/FM Table Radio Kit
Cool Product Report

Featured Product Archive

The inventions and products featured on these pages were chosen either for their uniqueness in the RF engineering realm, or are simply awesome (or ridiculous) enough to warrant an appearance.

| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |

Heathkit catalogs can be found at World Radio History and Heathkit Catalogs.

These are the kits for which I have photos:

Heathkit HM−1002 RF Power Meter

My Heathkit IM−17 Multimeter

My Heathkit ET−3100 Design Experimenter

Heathkit GR−48 AM/FM Table Radio Kit

Heathkit DG−140 Two-Station Intercom Kit

Heathkit HD−1481 Remote Coax Switch

Heathkit AA-1250 Stereo Receiver

Heathkit GD−1380 Video Game Pong

Heathkit IG−5257 TV Post-Marker / Sweep Generator

Heathkit SA−2060A Deluxe Antenna Tuner

Heathkit IM−2400 Hand-Held 512 MHz Frequency Counter

Heathkit CR−1 AM Crystal Radio Receiver

Heathkit HW−99 Novice CW Transceiver

Heathkit SA−5010 uMatic Morse Code Keyer

Heathkit GD−1114 Intercom Speaker System

Vintage Heathkit GR-48 AM/FM Table Radio Kit - RF Cafe Cool Product

Vintage Heathkit GR-48 AM/FM Table Radio

This vintage Heathkit GR−48 AM/FM Table Radio kit just showed up on eBay, and will be on auction until Monday, April 19th, 2021 (in case you would like to bid). The listing states it is of 1969 vintage, but the GR−36 shows up in the 1969 Heathkit catalog; the GR−48 first appears in 1970. Photos of the kit are from the current GR−48 listing noted above, and photos of the fully built kit are from an expired GR−48 listing. In the interest of preserving the memory of Heathkit's great legacy in the electronics realm, I have been looking for examples of unbuilt kits on eBay and posting some of the photos here on RF Cafe.

Heathkit products were well known for the completeness of its instruction manuals, with clearly illustrated instructions. During the writing and editing process, Heathkit employees were given pre-production kits to take home and build, while annotating any difficulties or errors encountered. Doing so helped minimize the situation where the writer inadvertently assumes his own familiarity with the process is shared by the customer. Having built a few Heathkit products myself in the 1970s when I did not have a lot of experience with electronics assembly, I can attest to the user friendliness of the instructions. Heathkit stills sells many of its vintage manuals for around $15, which is what you would pay on eBay.

 - RF Cafe

Heathkit GR-48 AM/FM Table Radio Kit
(eBay photo)

Heathkit GR-48 AM/FM Table Radio Box - RF Cafe

Heathkit GR-48 AM/FM Table Radio Box
 (eBay photo)

 Heathkit GR-48 AM/FM Table Radio Parts - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Parts
(eBay photo) 

Heathkit GR-48 AM/FM Table Radio Assembly Manual - RF Cafe

Heathkit GR-48 AM/FM Table Radio Assembly Manual
(eBay photo)

Heathkit GR-48 AM/FM Table Radio Paperwork - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Paperwork
(eBay photo) 

Heathkit GR-48 AM/FM Table Radio Brackets - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Brackets
(eBay photo) 

 

Heathkit Spring 1971 Catalog Cover - RF Cafe

Heathkit Spring 1971 Catalog Cover
(eBay photo)

Heathkit Spring 1971 Catalog p27 - RF Cafe

Heathkit Spring 1971 Catalog p27
 (eBay photo)

Heathkit GR-48 AM/FM Table Radio Back - RF Cafe

  Heathkit GR-48 AM/FM Table Radio Back
(eBay photo) 

Heathkit GR-48 AM/FM Table Radio Speaker & Transformer - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Speaker & Transformer
(eBay photo) 

Heathkit GR-48 AM/FM Table Radio Inside - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Inside
(eBay photo) 

Heathkit GR-48 AM/FM Table Radio Internal - RF Cafe

 Heathkit GR-48 AM/FM Table Radio Internal
(eBay photo) 

 

Contact Info

Heath Company (Heathkit)
Operations: PO Box 15, Ottsville, PA 18942
R&D/Mfg: PO Box 3115, Santa Cruz CA 95063
Phone: +1 (831) 480-4368
E-Mail: info.2015@2015.heath.company

 

 

Posted April 13, 2021

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