Welcome to the
Harbach Electronics, LLC Website
***W8ZR QSK Kit No Longer Available with GIGAVAC® GH-1 Relays***
11 January 2017: Harbach Electronics has been informed by GIGAVAC® that they have ended their long-time Ham Purchase Program. Therefore, I can no longer purchase them at discounted prices for the W8ZR QSK kit. Therefore, the QSK kit is only available as a set of PC boards or as a partial kit with all components EXCEPT the vacuum relays.
***NEW PRODUCT – PM-HP24 Power Supply Rebuild Kit for the Heathkit HP-24 Power Supply***
05 November 2016: Harbach Electronics is proud to announce the new PM-HP24 Power Supply rebuild kit! The kit features a redesigned rectifier and filter capacitor PC board that mounts on the top of the chassis, new modern 220μF 450VDC electrolytic capacitors, 1000 PIV 3A diodes and new 100KΩ 3W bleeder resistors, upgraded HV wire and new hookup wire. The new PC board mounts in the space where the original filter capacitors were mounted using new hardware supplied in the kit!. The PM-HP24 is now in stock and available for ordering. Details are available under the “Miscellaneous & Other Parts” category.
***NEW PRODUCT – ES4117-C Power Supply Rebuild Kit for the Swan Electronics 117-C Power Supply***
01 May 2016: Harbach Electronics is proud to announce the new ES4117-C Power Supply rebuild kit from Electronic Specialties! This all-in-one board installs over the bottom of the transformer like the original, but has all new resistors, diodes and capacitors on a single PC board. The PCB is pre-assembled and tested and includes a new 3-wire line cord and new safety AC line bypass capacitors. The ES4117-C is now in stock and available for ordering. Details are available under the “Swan Equipment” category.
***SW-100 Band Switch Wafer Now Back In Stock***
07 December 2015: The SW-100 band switch wafer is now back in stock and available for immediate shipment.
***SK-201 Soft-Key Used in the Yaesu FL-2100 Amplifier***
29 November 2015: Sean Davis, N8VIL, has modified the Yaesu FL-2100 amplifier so that the SK-201 soft key from Harbach Electronics can be used as a keying interface in the FL-2100. Other modifications include changing the cutoff bias voltage from -18 volts to -36 volts and an update to the ALC circuit. A complete schematic, photos and notes are available in the “Downloads” category.
***NEW PRODUCT – PM-MKII Power Supply Kit for the Swan Electronics Mark II***
07 November 2015: Harbach Electronics is proud to announce the new PM-MKII power supply rebuild kit for the Swan Electronics Mark II linear amplifier! The kit features redesigned rectifier and filter capacitor PC boards, new modern 330μF 450VDC electrolytic capacitors, 1000 PIV 3A diodes, new 100KΩ 3W bleeder resistors, upgraded surge resistor and a new glitch protection resistor string. Both PC boards mount in the original locations using new hardware supplied in the kit; no modifications to the chassis are required! The PM-MKII is now in stock and available for ordering. Details are available under the “Swan Equipment” category.
***2015 Jordan Ryan 410 Sprint Car Racing Shirts – End of Year Sale***
04 September 2015: The 2015 Jordan Ryan racing T-shirts are now on sale as the racing year draws to a close. Single shirts are now $15, 2 shirts are $12.50 each and 3 or more shirts are purchased together are $11.00 each. The price will show $15 each on the order but I will refund the difference via PayPal or credit card, depending on the method of payment.
***Multi-Key v2.4 Keying Interface On Sale***
12 July 2015: The new Harbach Electronics Multi-Key multi-function external amplifier keying interface is now ON SALE! The sale price of $47.95 is $5.00 off the regular price of $52.95 and is good through the end of September 2015. This price is approximately $10-$20 lower than similar units made by other manufacturers! The kit is in stock and available for immediate shipping. Details about the kit and ordering are available under the “Miscellaneous & Other Parts” category.
***NEW PRODUCT – ES4L4-B Soft-Start/Soft-Key/Bias Board from Electronic Specialties***
16 June 2015: Harbach Electronics is proud to announce the new ES4L4-B Soft-Start/Soft-Key/Bias board from Electronic Specialties! This all-in-one board provides a soft-start, soft-key and user adjustable biasing for the Drake L-4B amplifier. The unit mounts on the underside of the RF deck using existing holes in the chassis; no extra holes or modifications to the chassis are required! The board is assembled and comes with all necessary mounting hardware, miscellaneous parts and wiring. The ES4L4-B is now in stock and available for ordering. Details are available under the “Drake Equipment” category.
***THANKS TO ALL OF THE HARBACH ELECTRONICS CUSTOMERS!!***
16 May 2015: A big THANKS to all of the Harbach Electronics customers! Although the weather was rainy at times, the 2015 Hamvention was great thanks to all of my loyal and new customers. Your patronage and support is much appreciated! I will begin filling orders that were placed online while I was at Dayton tomorrow for shipment on Monday, 18 May 2015.
***NEW PRODUCT – Multi-Key v2.4 Keying Interface In Stock and Shipping***
26 April 2015: Harbach Electronics is proud to announce the new Multi-Key! This is a multi-function external amplifier keying interface that can interface ANY amplifier with ANY radio. The unit features 2 PLA140 solid-state relay outputs and a DPDT isolated relay output (phono jack and 3-position terminal strip). The unit also features complete isolation of the transceiver from the amplifier to protect sensitive keying circuits in modern transceivers. The keying circuitry is based on the W8ZR StationPro and was developed in conjunction with W8ZR and WA2QBC. Kits are now in stock and ready for shipping. Details and ordering are available under the “Miscellaneous & Other Parts” category.
***PM-2500 Upgrade Kit for the MLA-2500 & MLA-2500B In Stock & Shipping***
11 March 2015: The long-awaited PM-2500 upgrade kit for the Dentron MLA-2500 & MLA-2500B amplifiers is now in stock and available for shipping! All back orders for the kit have been shipped as of today. Due to the length of the instructions for the kit (16 pages), instruction sheets will be sent to customers as a PDF file via email. The instructions for the kit are also available in the downloads section.
***NEW PRODUCT – ES4SB220 SB-220 & SB-221 Filter Capacitor Block***
26 February 2015: Harbach Electronics is proud to announce a new product in our partnership with Electronic Specialties, the new ES4SB220 filter capacitor block. This product is for those wish to add additional capacitance and filtering to the SB-220, SB-221 & HL-2200 beyond what is provided by the Harbach Electronics FB-220 kit. This is achieved by using high quality 330µF 450VDC snap-mount electrolytic capacitors to provide excellent filtering at a significantly lower cost than using the physically larger, more expensive screw-mount computer-grade capacitors. The standard FB-220 filter capacitor block is also still available for those who prefer the computer-grade electrolytic capacitors. The new ES4SB220 kit is in stock and available for shipping. The instructions for the kit are available in the downloads section.