717a tube data booklet

The victoreen model 488 neutron survey meter was developed in the 1950s. According to the data sheets, both the tung sol 7581a and the jj 7027 have a maximum plate voltage of 500v. Follow the links on the left to find the tubes, valves, sockets, grid caps, and capacitors for your antique radio, ham radio, hifi stereo, or other electronic piece. I am working on scanning and placing on this page the entire rca hb3 tube manual. Made in russia, these premium driver tubes are compatible with any 12bh7 tube. Operated at its published conditions, it was able to supply nearly 800 milliwatts of. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. This technical data book has been compiled for the use of the. The number of marks is given in brackets at the end of each question or part question. It also has a metal base, which may have some oxidation. New manufacture tube cap connectors and tube bases. Today, the 71a has a small following amongst highend amplifier builders and hobbyists. The delightful type 717a is known as a little doorknob for the doorknob see 703a. A flat sheet beam is electrostatically deflected across the anode which is.

The we717a is a pentode tube that can also be wired as a triode like in the yamamoto a08 tube amplifiers. So, having in hand a few of these wwiiera tubes and some matching sockets acquired over the years, i decided to take. The improvement and modification of tii series compared to the previous tseries include. John deere y tractor manuals we carry the highest quality service svc, parts pts. Dec, 2002 the 71a provided more audio power than the ux112a, and the tube was less expensive than the ux210 or ux250 tubes. We electron tubes general bulletin index and general information. Specifications for the uv201 tube antique radio forums. John deere frontier equipment lawn mower user manual. Each file contains the information on all updating of a onetube type also the static and dynamic curves. Does anyone have a spec sheet by chance for a uv201 tube. As of 3505, i have finished scanning the general section, receiving tubes part 1, receiving tubes part 2, miscellaneous, specialpurpose receivingtype tubes, thyratron, ignitron, and glowdischarge tubes, and most of the transmitting tubes, as well as all. Tube 71a or rohre 71a id3600, triode, vacuum, uxbase 4 pins 2 thick, usa 1924, ux and poweroutput shown.

Every attempt is made to ensure the data listed is accurate. A few specialquality tubes did not have a standard equivalent, e. Substitutes are given as a guide only please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. Designed by western electric, the 717a was made in large numbers by several us manufacturers during wwii. At present time, these data are most complete and exact. Psvane acme supreme series 274b vacuum tubes single psvane acme supreme series is created with the intention to top the tube world, be it nos or new production. This comes from new sensor, they didnt create a new data sheet. Our preferred method of payment is via wire transfer of funds. We have new manufacture top caps to fit most tubes as well as pin connectors for things like types 3c24, 829b, 832a, etc. The uv201 is an earlier tube with a 1amp filament vs the 14 amp filament. A collection of electron tube specifications from the western electric library. Other factors equal, control ling internal tube capacitance in this way normally assures good interchangeability of tubes over a period of time, even when the tube may be made by dif ferent manufacturers. The type 71a vacuum tube was a power amplifier triode intended for use in the final audio stage of battery or alternating currentoperated receivers. The obsolete tube data booklet for the the 539c is the same for the ks157501.

Please see the substitutes at the top of the page for more details. This little geiger tube tester comes with the original instruction sheet and the original. Im interested if one of the original spec sheets show that the micromho rating for this tube would be the identical to the uv201a. The capacitance values shown in the manufacturers technical data, or. John deere manuals parts, service, repair and owners manuals. You can find exacter data, having investigated the characteristics of a tube for a mode used by you in the circuit. The 71as only real competition, for design purposes, was the ux245 power triode. Nos tube specification sheet nos tube specification sheet. One western electric 717a tube new in sealed box, and one raytheon 717a. Fechner 20 the roentgen ratemeter model 510 was sold in 1950.

Tube 717a or rohre 717a id9693, vacuum pentode, octal int. Consult official literature from the manufacturer before attempting any service or repair. The other early numbers in this series 202 through 209 were transmitting tubes of rca or western electric, and the two digit designations between 2 and 10 were never applied to receiving tubes although 1 through 9 were philco. As of 3505, i have finished scanning the general section, receiving tubes part 1, receiving tubes part 2, miscellaneous, specialpurpose receivingtype tubes, thyratron, ignitron, and glowdischarge tubes, and most of the. Crystallized carbon grey coating inside the tube only on el34, kt88, 300b, 2a3, cv181 aka 6sn7 more info.

This is a list of vacuum tubes or thermionic valves, and lowpressure gasfilled tubes. The tube list at esrc1 vacuum tubes is very extensive, as is our inventory of vacuum tubes, grid caps, sockets, valves and capacitors. Data from or other sources as supplied by john atwood. If you or someone you know requires assistance due to the covid19 outbreak, please call john deere financial at 8003250 or go to to take advantage of online tools. Im interested if one of the original spec sheets show that the micromho rating for this tube would be the identical to. John deere front mowers attachments product brochure. View and download coby dvd717 specification online. They feature stepbystep procedures so you can operate, repair, service, maintain, and order parts. For pushpull operation, a tuned, balanced output tank circuit is required. The data sheets that resellers post with these tubes are a copy of the original 7581a ones from tung sol. We also carry 4 pin and 8 pin tube bases which make great plugs. The glass has heavy chrome flashing and is labeled tungsol we 717a.

Haven 1087, keetberglaan 1, 9120 melsele, belgium pioneer electronics asiacentre pte. It began life, under the old style of tube designation, as the ux171 and was announced by the radio corporation of america in may 1926. At the end of the examination, fasten all your work securely together. Antique radio forums view topic hickok ks15750l1 tube data. Table of contents pioneer electronics service, inc. This site has the highest level of secure encryption to protect your credit card and personal information, but we are more than happy to take your order over the phone. The valve is a type 717a is known as a little doorknob. We carry the highest quality service svc, parts pts. These losses not in cluded they depend principally the design and the choice of components. Vt269 is a us government designation for vacuum tube 269. Typical radio receiver and amplifier circuits 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16.

We also carry 4 pin and 8 pin tube bases which make great plugs and also allow one to make adapters and coil forms. An 829b dual beam power pentode cw transmitter don huff, w6jl. Intended as a lownoise frontend amplifier in uhf radar receivers, the 717a achieves 4 mav despite its small size. I used 14 gauge enameled wire from the junkbox and wound the tank inductor in two sections, using a 4 o. With almost datasheets and the visitor counter indicates over 4000. An 829b dual beam power pentode cw transmitter don huff, w6jl june 6, 2016 ive always thought of the 829b as a rather attractive tube physically ie, it has sex appeal. The box is in good condition and is labeled either u. The we 717a is a pentode tube that can also be wired as a triode like in the yamamoto a08 tube amplifiers.