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KT88 - (TRIODE) PARALLEL PUSH-PULL 60WATT …
http://triodeguy.com/Triodeguy%20PDF%20files/Triodeguy%20KT88%20Push-Pull.pdf
feedback is applied around a simple DC coupled loop for which at audio frequencies, phase shift would not be problematic. Also, unlike applying global feedback from the output transformer secondary the fed-back signal would be entirely due to the internal voltage gain process and not influenced by the back e.m.f. from the loudspeakers(s).
IWISTAO Tube Amplifier Transformer Kit Inventory for KT88 ...
https://www.iwistao.com/products/iwistao-tube-amplifier-transformer-kits-inventory-1pc-220w-power-2pcs-output-transformers-for-kt88
IWISTAO Tube Amplifier Transformer Kit Inventory for KT88 Tube Amp Including 1pc 220W Power 2pcs Output Transformers HIFI Audio It is a 220W tube amplifier transformer kit for KT88 or similar. Specifications A. Power transformer X 1 1. Power: 220W2. Core 105x50 35 (tongue width)3. Primary: 0--220V/5OHz4.
The C70 KT-88 Vacuum Tube Stereo Ampli7er - …
https://linearaudio.net/sites/linearaudio.net/files/v2%20bc.pdf
characteristics of the output transformer, since it has a strong influence on the open-loop gain and phase of the amplifier. The transformers in this amplifier came from an amplifier that the author built in the 1960’s and are of unknown origin and are certainly no longer available. For this reason, the 51 The C70 KT-88 Vacuum Tube Stereo ...
OddWatt Audio 5751 SRPP / KT88 Push-Pull Monoblock …
https://diyaudioprojects.com/Tubes/5751-KT88-Tube-Amp-Kit/
The audio output transformer is an Edcor CXPP25-MS-8k, rated at 25 W. Power Supply - Odd Block KT88 Series 1 Tube Amp A schematic of the power supply is shown below.
IWISTAO 20W Output Transformer Tube Amp Z11 Single …
https://www.iwistao.com/products/iwistao-20w-output-transformer-tube-amp-z11-single-ended-silicon-steel-ei-transformers-power-audio-hifi-for-fu7-300b-6p3p-kt88-1
IWISTAO 20W Output Transformer Tube Amp Z11 Single-ended Silicon Steel EI Transformers Power Audio HIFI for FU7/300B/6P3P/KT88 IWISTAO 20W Output Transformer Tube Amp Z11 Single-ended Silicon Steel EI Transformers Power Audio HIFI for FU7/300B/6P3P/KT88 Model No: WVTR-OT20W Please note: 1. Horizontal 3.5k --- 3.5K input with Horizontal ...
Valve Amps: Output transformers - Lenard Audio
https://education.lenardaudio.com/en/14_valve_amps_5.html
The output transformer is the heart of a valve amplifier. ... The amplified audio from the 2 output valves, push pull is in opposite phase 180deg. ... ↑ The small top toroid power tranny (+-20V and +-100V) is for the electronic crossover and …
KT88 and Hammond Transformer Schematics | diyAudio
https://www.diyaudio.com/community/threads/kt88-and-hammond-transformer-schematics.86408/
2006-09-15 3:11 am. #8. I have looked at the angle site and hammond. If the kt88 tube runs at 55 to 100 ma is the transform output based on 4 kt88 time the ma per tube eg 4 x 65ma=250 ma total. Therefore there is no 350-0-350 or 400-0-400 transform the will produce that current or is the ma 65 per push pull pair.
KT88 and Hammond Transformer Schematics | Page 4 | diyAudio
https://www.diyaudio.com/community/threads/kt88-and-hammond-transformer-schematics.86408/page-4
I tried increasing the bias voltage from 40 ma to 55. This only resulted about 2 more volts on output (13 volts rms at 16 ohms) and also a runnaway tube within 30 seconds . Blow the main power fuse and scorched a kt88. I have to pick up one new pair tomorrow. The kt 88 still work but starts to clip at 3/4 input.
KT88 SE Amp Question | The Gear Page
https://www.thegearpage.net/board/index.php?threads/kt88-se-amp-question.327662/
I have seen KT88 SE amps rated at 20W with a simular plate voltage, so I am not sure why mine only puts out 12 watts. The specs are as follows: Output transformer: 2.3K. Plate Voltage: 430V. Idle Bias Current: 95ma. Voltage Plate to Cathode: 405V. Screen (g2) Voltage: 360V. Screen Current: 6.2 ma @ idle, 14 ma @ full clean output.
Hammond Mfg. - "Classic" Push-Pull - Tube Output ...
http://www.hammondmfg.com/1608.htm
Typical applications - Push-Pull: triode, Ultra-Linear pentode, pentode and tetrode connected audio output. Due to the unique interleaving of the windings BOTH secondary windings must be engaged to meet specifications (see hook-up diagrams below). For the "ultimate" in Push-Pull output see our line of epoxy potted output transformers.
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