Jeff Weinberg, W8CQ

Your World-Wide Source For Amateur Radio Amplifier Parts & Upgrade Kits

Your World-Wide Source For Amateur Radio Amplifier Parts & Upgrade Kits

Welcome to the

Harbach Electronics, LLC Website

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***RY-L4B Now Back In Stock***

30 June 2015:  The RY-L4B T/R relay for the Drake L-4/L-4B/L-7/L-75 is now back in stock.  I was able to find a lot of them at a decent price and was able to lower the sale price on them to $25, plus shipping.

***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 boars 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.


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.