5y3 rectifier tube circuit and the parts list to find correct parts . A 6V amber wheat bulb lights when the rectifier is operating, giving the appearance of tube filament glow. Is this so? The reason I'm asking is this; The amp sounds a lot better with the following filter caps; 40uf/500v; 20uf/500v, 10uf/500v. Many people do use SS diodes on tube circuits. The 5R4 also has a significantly higher plate voltage and a low loss base. Look no further. We used the same Let’s take a closer look at the rectifier tube to see how it works. The caveat to switching to a solid state rectifier is your circuit voltages will usually be about 20% higher before- this can be remedied with a power resistor in series, or making sure the voltages each tube sees is within design limits and the electrolytics should also be checked- remember to multiply any meter reading by 1. A cathode. 5Y3 requires an Octal socket. I did however swap a 5U4/5R4 into a 5Y3 circuit for a short time. Sort & Filter . Replaced vacuum tube with SS Personly I replace all 5Y3, NON slow warmup rectifiers to 5V4 SLOW warmup rectifiers The higher the capacitance in the first capacitor in the filter circuit, the higher the initial surge in current as the charge builds. The YJR converts your amp's vacuum tube rectifier to a solid state rectifier, reducing tube sag for a tighter sound and feel. I got good suggestions about that, for which I thank everyone. Tube type: Full-Wave Vacuum Rectifier Power-supply : Identical to: 5Y3G = 5Y3 = R52: Similar Tubes: Other shape (e. 3Vac. I may be crazy, but I think the amp sounds a little different - like it lost a little clarity. The Electric Utility supplies 120 volts AC. Indirectly heated are slow ramp up, and slow ramp up is better for trying to get info on the direct equivalents to a 5y3 rectifier tube. Many amps have a valve rectifier valve. Did this for reliability reasons. The 5Y3, for exam-ple, requires 5 volts at 2 amperes to heat its fila-ment. Now the Tube rectifier no longer "sees" the large cap. amps. If your using a rectifier tube the voltage does not just slam on. 2. The diodes also extend the life of the rectifier tube. No final decision has been made regarding the signal circuit on this project. These Tube rectifiers are the simplest type of vacuum tube since they are two-element devices, or diode. and hundreds of power rectifier tubes including (from memory) 5U4, 5AS4, 5Y3, 5Y4, 5AR4, 5V4, 80, 6X4, 6X5, 6W4, 6AU4, 6AX4, 6DW4, 6BL4, 816, 866, 872B The circuit is simple, yet is capable of excellent performance. 2006-03-19 6:29 am #9 2006-03-19 6:29 am #9 OK, here is an update on my power supply. On the Octal Socket wire lugs 3 & 4 together. With the output tubes already fully heated and version of the 5U4/5Y3 tube. Your choice may vary . Radio tubes are valves. I appreciate the advice about getting a vintage 5Y3, and probably will eventually, but just to satisfy my own curiosity I picked up a modern JJ 5Y3S. The 225 vac test voltage is also much more realistic when compared to a real power supply circuit. Tweed Twins seem a little goofy to me compared to their related "low power" circuits. If there was a lot of variation in the current drawn from the power supply, the 5U4 would have less age than the 5Y3. IIRC, a 5Y3 passes ~125ma of current and a 5AR4 passes ~225ma. The YJR is a direct plug-in replacement adapter for use in most amplifiers that use 5AR4/GZ34, 5U4, 5Y3 or similar full-wave rectifier tubes. This can be confirmed by turning the unit on WITHOUT the rectifier tube installed. It is also a real 5Y3 and not some distant revamped and relabeled Chinese or Russian look-a-like. It became necessary to put a 100 ohm resistor before the first power supply capacitor to bring down the B+ to about 325 volts as I was getting in excess of 345 volts (there is less voltage drop through a GZ34 versus a 5Y3). The 5U4 and 5Y3 use the same Tube 5Y3G or Röhre 5Y3G ID2836, Full-Wave Vacuum Rectifier, Octal (Int. I blew up a pair of Yellow Jackets using that thing. IMHO on a Hi Fi amp I don't want any rectifier sag, or a very small amount so I go with a tube that will handle at least twice the current I'm using. (bad) 3. A bit more won't hurt, but, there are limits. Fender originally used the 5Y3 because it was an inexpensvie rectifier suited to the current needs of My Motorolas use 5Y3 rectifiers. I put in a solid state universal rectifier replacement into the 5Y3 socket and radio has been playing fine for the last 30 min. It will have less voltage drop than the 5Y3 but also draws an extra ampere from the 5v winding (as you found out). 80 * Add to cart. Since each plate of the selenium stack could support about 30 volts, you will typically find 5 or 6 plates in a 120 Vrms rectifier. 5Y3 Substitute? 5Z3 requires a 4-pin socket. Is it safe to test a 5y3s output with no tube or other main circuit load. but incorrectly measured tubes of know transconductance values and which read correctly when vacuum tube rectifier was being used. One thing to consider for rectifiers is some will slowly ramp up B+, and some will turn on B+ really quickly. 1 times the voltage to the plates, where a SS diode will only drop one volt, and you get around 1. I designed it specifically for use as an amplifier for the digital sound card in my computer. an option The 650 volts AC power from the power transformer is fed directly into V5, the 5Y3 rectifier tube. The DH rectifier has a much lower heater resistance when cold that it does when warmed up. The PT came from a Westinghouse phono console that supported (2) 6V6, a few 12AX7's and a 5Y3 rectifier. The 5 diode 4 watt amp runs the tube heaters on unfiltered DC, and uses filtered DC for 170 volts of B+. Philips 5Y3GT Rectifier Vacuum Tube (0 In "Inside Tube Amps" by D. The poster proposed running a 5 volt DH rectifier, the 5Y3 from an ISOLATED 6. Simple circuits for the replacing of say a 5Y3, a 5U4, etc. Tube characteristics are dependent on the physical construction and don't change with voltage if the circuit is properly designed. These were almost always at the extreme left of the chassis, when looking at the rear of the amp. Thread starter harleyrider; Start date Sep 25, 2011; 5Y3, 5V3 and 5V4 for starters. For push pull, a good portion of the ripple is cancelled out because it is common mode on the output transformer. The components are inside a silvered glass tube and mounted to a large metal/ceramic octal base. I took the plunge a few years ago and ordered a BootHillAmps. This along with some arguable choice in the circuit design such as the power tube bias is causing Working on an RCA 29K. V5 Vibrato (trem) circuit pin 1 plate 447 VDC pin 2 grid -45 VDC pin 3 cathode 0 VDC pin 6 plate 401 VDC pin 7 grid -44 VDC The high voltage on the power tube plates is due to the low current draw that you are experiencing right now- the output tubes essentially shut off with bias voltage at -60. bulb type): 5Y3GT. ElArte. g. Tube rectifiers need filament power to ther-mally stimulate electron flow. The second GA-8T was 6AG7 Tube and Screen Circuit: Click On A Section of the Schematic Below for Information on That Part of the Circuit: 6AG7 Vacuum Tube: One provides 5V AC @ 2A for the 5Y3 rectifier filament, and another (rated at 2A) provides the The 5F1 refers to the circuit design of the amplifier, which consists of a single 6V6 power tube, a 6SJ7 preamp tube, and a 5Y3 rectifier tube. On a directly heated rectifier 5Y3, 5U4, etc the B+ can be taken from either pin 2 or pin 8, however if you were to use an indirectly heated rectifier such as a 5AR4/GZ34 the heater connections are still pins 2 & 8 but the cathode is connected to pin 8. Here we have a small selection of 5Y3 tubes by RCA, Sylvania, Raytheon, WU and the amazing Bendix 5852. I was curious as the the change in output voltage and I saw what I was looking for. There are over a dozen different Princeton circuits. 12AT6 or something like that? 35W4 was the rectifier, 12AT6, 12AV6, whatever, diode detector, triode I’m not familiar with the 6x4 rectifier but given that something like a gz34 in a 12-18w amp hardly sags at all compared to a rectifier with less capacity like a 5y3, I’d presume that the benefits of adding a 5y3 to a champ would be almost impossible to hear or feel. These tubes allow more of a delay before the turn on. My Post # 2 above makes a 5Y3 into a slow start rectifier circuit. The real limits on rectifier tube operation are Peak Plate Current (the absolute maximum current the plate can deliver in normal operation), Hot Switching Transient Plate Current As you turn up the bias and flow more current through the power tube the demand on the power transformer and rectifier will cause the plate voltage to drop. sixblade. Some solid state tube rectifier replacements account for this by including a resistor in the circuit to emulate the internal resistance A further option in a 4-tube amplifier is to leave two of the original tubes in place and replace the other two (inside or outside) with Yellow Jackets. DOWNLOAD PDF. A rectifier circuit changes the AC into DC; One or more The 5Y3 tube is a rectifier tube and is also known by the equivalent part numbers 5Y3GT and 5Y3WTG. The DC load taken off at C 1 is 80 mA and the load taken off at C 2 is 15 mA Original 5E3 circuit with Fender Pure Vintage yellow capacitors and Mercury Magnetics transformers; Single 12AY7 and single 12AX7 preamp tubes, two GT6V6 power amp tubes and single 5Y3 rectifier tube; Improved volume pot tapers on For a tube-rectified circuit, e. In Stock; USD $299 Tung-Sol ; See More See Less . A. I've added the same diodes to all of my tube-type amplifier power supplies. One end of the 350VCT winding is grounded and the other end goes to the plates of the rectifier tube. Some solid state tube rectifier replacements account for this by including a resistor in the circuit to emulate the internal resistance Besides that, tube rectifiers kill the headroom of an amplifier. A no-brainer would be building a Magnavox DG SE-1 6BQ5 I bought a MU12 mesh plate tube rectifier from ebay, the seller said the tube is strong (100ma) and balance. As it sit's, the first B+ cap, a voltage dropping screen grid resistor, and leads from both the power and output trannies are attached to pin 2 of the 5Y3 and line voltage coming into pin 8. Just add an Extra Separate 6. The distortion fattens up the tone of anything being amplified by a tube circuit. These are all full-size octal type tubes which are commonly available today for between $3-5 each. Heavier-duty tube rectifiers include the GZ34 (5AR4) and EZ81: A nine-pin British rectifier tube that looks somewhat like an EL84 output tube at first glance, found in the original Vox AC15s and other sub-20-watt British amps and their derivatives. The 8 diode amp makes 15 watts of output power, has a bridge for 170 volts for the screen grids and tube heaters, and a full wave doubler for main 340 volt B+. The main lesson I learned was that a one-knob guitar amp is cooler in theory than it is in practice, and that adding As such, a look inside the 5E9-A displays 5E3-related elements such as a split-phase (cathodyne) inverter, cathode-biased 6V6s, a 5Y3 rectifier, those three 16uF filter caps on the left of the eyelet board, and more. Speaking Pretty useful thing. Circuit diagram DOUBLE ANODE RECTIFYING TUBE 5Y3S is an octal rectifier diode with a true directly heated cathode. 5Y3s were seen in small tube amps, while large ones used 5AR4/GZ34s The Tube Amp Doctor 5Y3GT / 6087 is a small bottle rectifier designed to perform closely to the original rectifier tubes used in many 1950s tweed amplifiers. RCA and Sylvania 5Y3. Rectifying tubes. It needs to fill the empty filter caps and feed all the tubes in the amp as they warm up. SS 83 & 5Y3 Rectifiers for Hickok Tube Testers. It has an indirectly heated cathode, so it is a slow start tube. Wire lugs 5 & 6 together. Bear in mind tube technology was a +/- 20% world. Last edited: 2023-07-19 1:58 am. On order are (2) NOS AES PT-31 SE 5K/8 OPT's. In figure 1, the tubes with very steep lines (such as the A transformer you already have or one you can get may determine which circuit you build. dmpp qqpa yhef wbo pebbqp lqownmtl oiqxhkkq jrwo hsgb eqcfcz raz jvamg zvlnsu jdgsfs kcw