4p1l tube data sheet

You can get a view of this beauty in the datasheet here. I made similar cgyrators, one with dn2540 to92, the other with j310 as lower device. Here is a triodeconnected chart from belkanovs webzine shaded area is the testers range limited. Home tubes 6j1pev ef95 6f32 pentode tubes lot of 10 new. If everything is ok, the measured voltage of vcc terminals of r2 or r5 are about 65v dc. Glass envlope is taller than the 5842, about the same as the regular 12a7 noval tubes, although anode dissipation is rated lower than the 5842. Here is some data on the power triodes that might be usable by amateurs for radio projects. Actually, it is a dh pentode, but thanks to the late aleks belkanov it is labelled the last dht it is a locktal tube from the fifties. Single ended triodes sets, the ultimate tube lovers dream. The 5y3 is a mediumpower directly heated fullwave rectifier vacuum tube introduced by rca in 1935.

Or the first dht that went through klaustester torture bench. Notify me of updates to 6e5p audiophile tetrode tube. For the complete technical specs refer to the rca data sheet. You could even use 3 x 4p1l if you decreased the current to 30ma on the output tubes, but with that it would be better to have a 2. Pdf stevalisa020v1 viper12ase tsm101 stevalisa020v1 tsm101 viper12 design 4p1l 617a3 viper12 schematic smps ll4148 viper12as kmg 400v. Many discarded it as being a howling beast in preamp stages. The coleman regulators are a product of lyrima, ltd in the uk. It is virtually identical, electrically, to the older fourpin type 80 tube, but with an octal base. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. Actually, it is a dh pentode, but thanks to the late.

But the low filament current of the latter comes at a cost which means about half the transconductance and twice the plate resistance compared to the 958a. Its worth paying a lot of attention to the filament supply in filament bias it makes a big difference. I cant see any reason why you couldnt triode connect this tube if you wanted to. Tube 1u4 or rohre 1u4 id2627, vacuum pentode, miniatur7pinbase b7g, usa 1940 and rfifstage shown. Adjust the vr1 500ohm so that the the tube filament voltage middle pin of u1 is around 6. It has found wide use in tube radios and early guitar amplifiers of the fender champ type. Qty part manufacturer datecode description photo data sheet. Vacuum tubes, sockets, capacitors, nixie and electron tube accessories.

In common with all e prefix tubes, using the mullardphilips tube designation, the el34 has a heater voltage of 6. You can find exacter data, having investigated the characteristics of a tube for a mode used by you in the. Chinese electron tube 4p1s is directly heated pentode and direct replacement for the russian 4p1l 41. The chassis is starting to look like a swiss cheese. Application, oscillation and power amplification up to 100mhz.

Gone with a vt50 dht input, paralleled 6n6p concertina with the 4p1l triode strapped with g2 and g3 strapped to the anode. I find this valve to be microphonic, the microphonics can be tamed but there are limits with regards to suitable speaker sensitivity. A really nice tube on the datasheet, but after testing it seems there is a lot of. Maximum ratings keydown conditions, per tube to 110 mhz 4000 600 350 400 35 10 volts volts ma watts watts watts 500 170 540 31 20 20 1600 1440 dc plate voltage dc screen voltage dc plate current plate dissipation screen dissipation grid dissipation typical operation frequencies below 75 mhz, one tube typical operation 1 10 mhz. The underscore and these letters are not part of the tube type number.

Tube 3v4 or rohre 3v4 id2119, vacuum pentode, miniatur7pinbase b7g, usa 1940 and poweroutput shown. The filament operates at 5v and consumes a hefty 7. The 872a is a half wave rectifier, which means it is a single diode. This list shows all imagesphotos of tubes on the website. Would you consider building around 4p1l tube instead of 2a3, 45, 50, and 52. The tubes load is a cascode ccs using dn2540n5 mosfets. It comes on a jumbo 4pin base and has a medium size top cap. The 5ar4 and gz34 is an indirectly heated cathode tube which means it. Separate transformers for each tube and preferably a nice hammond choke input. Etsy your place to buy and sell all things handmade.

Made in ussr, reflektor factory for military equipments otk, military rhombus stamped. I would suggest an upper limit of 100db1w, 4p1l are too noisy for compression drivers. The 5ar4 and gz34 is an indirectly heated cathode tube which means it takes longer to warm up. Electron devices svetlana 8200 south memorial parkway huntsville, al 35802 usa phone. The 4p1l will get its own dedicated amp at some point, and may make it into the. This results in a current delivery capability of up to 1. After having purchased some russian 4p1l tubes from a vendor in russia about six or seven. Stevalisa020v1 4p1l 617a3 viper12 schematic smps ll4148 viper12ase viper12as kmg 400v text. According to the data sheets found in old vacuum tube reference manuals, a pair of el34s with 800 v plate voltage can produce 90 watts output in class ab1 in pushpull configuration. Some of the technologies we use are necessary for critical functions like security and site integrity, account authentication, security and privacy preferences, internal site usage and maintenance data, and to make the. May 06, 2020 both tubes have very similar amplification factors. This tube is very close to the 5842 and makes a nice affordable alternative, bias is just slightly off. Hybrid amplifier with 4p1l gain stage and f4 current.

The filament bias is supplied by excellent regulator made by rod coleman. Russianenglish translation of 4p1l datasheet diyaudio. After having purchased some russian 4p1l tubes from a vendor in russia about six or seven years ago, i finally got around to building a rough prototype preamp using an existing chassis with a suitable power supply already in place. Images should have just one tube or a collage of the same tube, preferably with the type and brand visible. Not the usual triodes like 45, 2a3, 801a, etc, but i will start with a tube which can be regarded as an insider tip, the 46. This is done in case of equal tube type numbers for different tubes. It was an unknown device to me until was suggested by some friends in the forum. Hello, before i start killing 4p1l left right and centre, could some of the russian speakers help with the maximum ratings from the datasheet. Where possible, eimac data sheets are provided, as eimac tubes are used by so many hams. The first is capable up to about 100ma, second is can only 37ma when saturated j310 is the limiting factor.