Alpha 77 DX PA77-DF, PA77-Dx,Alpha77 Sx
Ehrhorn Technological Operations Inc.; Colorado Springs, CO
- Country
- United States of America (USA)
- Manufacturer / Brand
- Ehrhorn Technological Operations Inc.; Colorado Springs, CO
- Year
- 1990
- Category
- RF (Radio Frequency-) Amplifier
- Radiomuseum.org ID
- 278885
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 1
- Valves / Tubes
- 8877
- Number of Transistors
- 16
- Semiconductors
- 2N3904 MJE802 2N3904 2N3904 2N3904 2N3904 2N6027 MFE121 or. MPF122 2N5061 MJE802 2N3904 2N3904 2N3904 2N3904 2N3904 2N3904
- Wave bands
- Short Wave (SW only)
- Power type and voltage
- Alternating Current supply (AC) / 220 - 250 Volt
- Material
- Metal case
- from Radiomuseum.org
- Model: Alpha 77 DX [PA77-DF, PA77-Dx,Alpha77 Sx] - Ehrhorn Technological
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 480 x 280 x 560 mm / 18.9 x 11 x 22 inch
- Notes
-
Frequency Coverage : 1.8-2.0 and 3-24 MHz (24~30 MHz, PA-77Dx only)
Plate Power Input : PA-77DF 2.5 KW PEP/SSB, 1 KW average d-c, all modes, no time .limit; PA-77Dx 3.5 KW PEP, 2 KW d-c average
For export only, Model Alpha 77Sx (PA-77Sx): Same as ALPHA 77Dx (PA-77Dx) above except two 8877 tubes permit greater PEP input and output power. Approximately 175 watts drive for maximum output.
Cooling« Full-cabinet ducted forced airi ball bearing centrif. blower
- Net weight (2.2 lb = 1 kg)
- 48 kg / 105 lb 11.6 oz (105.727 lb)
- Author
- Model page created by Jean-Luc Potart. See "Data change" for further contributors.
- Other Models
-
Here you find 9 models, 9 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Ehrhorn Technological Operations Inc.; Colorado Springs, CO
Collections
The model Alpha 77 DX is part of the collections of the following members.