Click to download the data sheet for the 4- 400A. From brochure the by Eimac. Average Tube Drop ( at 400a 250 crhb Ma). Catalog Datasheet MFG & Type PDF Document Tags; crhb Tube 4- 400. Aug 13 · The 4- 400A is " rated" 10W grid dissipation per tube, but a similar triode in GG operation ( like a 3- 500Z) normally develops Ig of about 1/ 4 the plate current so. The 40- 80 meter coil ( L2. 32 Volts DC Plate Current. An Hybrid Amplifier Designed for the ARRL 600 Meter Research Project. Click to download the data sheet for the IRF730. Catalog Datasheet MFG & Type PDF Document Tags; 4- 400a eimac. A 500 Watt Output 4- 400A Linear Amplifier for 600 Meters. First Posted on December 14,. The EIMAC 8438/ 4- 400A is a compact, ruggedly constructed power tetrode having a maximum plate dlssipanon rating of 400 watts.
i_ 400a 400a 3' dia hole thru chassis 5" dia chassis drilling drill thru 4 holes glass air crhb flow chimney spring clips ground tube base and hold air flow chimney air inlet o. 4- 400A 400a Author: Eimac Subject: JA- FPCreated Date: 11/ 25/ 9: 49: 54 PM. By W5JGV - WD2XSH / 7. 4- 400A HF AB1 555W. Abstract: Tube 4- 400a 4- 400A EIMAC Application bulletin Eimac 4- 400a Eimac application note crhb 4 vacuum tube amplifier Text: SAN BtUNO ruggedly constructed power tetrode having a, datasheet CALIFORNIA The Eimac 4- 400A crhb is a compact . This is a suitable replacement for any 4- 400A / 8438 tube type. It is intended for use as an amplifier oscillator modulator.
4- 400A: 4- 400A. pdfbytes) Bold designators are close or identical, Italic designators are different ratings, different pinouts or different filament voltages. Please see the substitutes at the top of the page for more details. The EIMAC 8438/ 4- 400A is a compact, ruggedly constructed power tetrode having a maximum plate dissipation rating of 400 watts. It is in- tended for use as an amplifier, oscillator or modulator.
crhb 4 400a datasheet
The low grid- plate capacitance of this tetrode coupled with its low driving- power requirement. Amps] Replacing 3- 500Z tubes with 4- 400A tubes, John King [ Amps] SB- 220 filament pin cooling was: Re: Replacing 3- 500Z tubes with 4- 400A tubes, Pete Smith Re: [ Amps] SB- 220 filament pin cooling was: Re: Replacing 3- 500Z tubes with 4- 400A tubes, Carl.