Manuals, Documents and Downloads

Single-page document describing 2 mods by Steve Ellington.

Information on the "surge protector diode" problem. by Larry W9MDX. Single-page text document.

Kenwood service bulletin 10/11/1996 describing EPROM replacement to fix problem of the TS-870S where is repeatedly switches between receive and trasnmit. Single-page text document.

High-resolution image of this never produced prototype model

Original 12-page operating manual.

Extensive manual compiled by PA3GMP describing many previously undocumented features and modifications. Includes circuit diagrams, mods, software and hardware hacks and installation details. Absolute must-have for FT-100 owners!

Vintage vhf radio Fdk Multi Quartz-16 Manual & Schematic

Instruction manual with installation + operation instructions, alignment details and circuit diagram. 4 pages.

Revised instruction manual for the Eddystone model 840C communications receiver. Contains circuit description, installation and operation instructions, servicing instructions, circuit diagram and parts list. 9 pages.

A3 format circuit diagram for the Eddystone 840C

User Manual, part #74279

Ten-Tec Orion/Orion II Users Manual Addendum Firmware Version V3. The purpose of this document is to identify the changes that were made to generate the V3 firmware builds for the Orion Model 565 and the Orion II Model 566.

Optimal setting of Orion 565 receiver for weak signals, by W4PA and KF6DX.

Text-only user's manual

Specs (screenshot)