rs237 tube telefunken brass base valve vt4c 845 vt25 211 amplifier 100 Watt TX
Specifications
| All Returns Accepted | ReturnsNotAccepted |
| Model | rs237 |
| MPN | Does Not Apply |
| Country/Region Of Manufacture | Germany |
| Brand | TELEFUNKEN |
| Featured Refinements | rs237 |
| Type | Power Tubes |
RS237 tube telefunken brass base valve vt4c 845 211 amplifier 100 Watt Transmitting 100WS ( 100 Watt sender of German Army WW2 ) fully tested with neumberger rpm370 ; test results 60 mA ( 50 mA = 100% ) brass base year 1934 original vintage power transmitting tube german army ww2 100 Watt Transmitting triode 100WSVf 10 Volt / If 3.3 Ampere / Direct 100 Watt Senderöhre Telefunken RS237 (RS 237) Dimensions (LxAxP) incl.pins/tip 55 x 183 x mm / 2.17 x 7.20 x inch Weight 200 g / 7.05 oz The RS237 is a power triode made for the German war effort in the mid to late 1930s. They were used originally in airbourne transmitters. The anode dissipation is 100 Watts and while the anode seems to be perforated in mesh fashion it is in fact dimpled and not pierced in this example. Looking at the filament under a glass it appears to be thoriated tungsten wire formed into a pair of inverted V's. The assembly is rugged and clearly professional. The support structure is clamped to the pinch stem with a nut and bolt to tighten the band. The top insulator is ceramic for high voltage use. The dimpled anode is carburised for better radiation. The anode On the broad face is a pair of diagonal webs for increased rigidity. The grid is shaped and made of robust wire, this would be required in a transmitter valve that operates in Class C and is required to pass grid current and thus dissipate some power.The supporting rods form a cross bracing. These features all point to a service life in mobile or airborne use. fully tested with neumberger rpm370 ; test results 60 mA ( 50 mA = 100% ) brass base year 1934 original vintage power transmitting tube german army ww2 tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER roehre Pre-Amplifier Preamp Pri VINTAGE stereo SE Single Ended PP Push-Pull VACUUM TUBES röhren roehre vorverstärker röhrenverstärker preamp preamplifier roehre röhre nos nib tube ovp röhren Klangfilm Vintage Speakers vintage Field Coil Speaker Full Range Vintage Speaker Telefunken Vintage Tubes & Tubes Sockets TELEFUNKEN JBL Vintage Speakers & Horn Drivers Vintage Speaker & Horn Drivers Vintage Horn Speaker Telefunken Vintage Radios Altec Lansing Vintage Speakers & Horn Drivers tube valve lampe röhre tsf 진공관 真空管 HAM RADIO audio hi-end hi-fi diy POWER AMPLIFIER roehre Pre-Amplifier Preamp Pri VINTAGE stereo SE Single Ended PP Push-Pull VACUUM TUBES röhren roehre vorverstärker röhrenverstärker preamp preamplifier roehre röhre nos nib tube ovp röhren Klangfilm Vintage Speakers vintage Field Coil Speaker Full Range Vintage Speaker Telefunken Vintage Tubes & Tubes Sockets TELEFUNKEN JBL Vintage Speakers & Horn Drivers Vintage Speaker & Horn Drivers Vintage Horn Speaker Telefunken Vintage Radios Altec Lansing Vintage Speakers & Horn Drivers
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