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Hits: 5430 Replies: 8
6M6 (6M6)/EL33
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Júlio Branco
18.Apr.07 |
1
Dear Members
This information can be quite useful for my friends of the radio. The tube 6M6 can also be substituted directly by the tube EL33.
Best Regards Júlio Branco |
Roy Johnson
18.Apr.07 |
2
The 6V6 and EL33 are NOT equivalent! A hasty note of warning! They have the same base, connections and heater volts but differ considerably. THe heater current of the EL33 is 0.9A compared with 0.45A for the 6V6. More seriously the biasing requirements are different and could cause dangerous excess anode currents. Replacing an EL33 with a 6V6 without changing grid bias would not be a good idea! The power limitation on the EL33 is 9W whereas the 6V6 is 12W; the output impedance is different. Whilst it may "work" to exchange these tubes it should not be done without circuit changes. Regards to all, Roy |
Ernst Erb
18.Apr.07 |
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Dear Júlio I know that some literature is very lazy about subtitution of tubes and you often find a = for tubes which can be subtituted but only in one way or with some changes to the circuit - if one regards life of tube or circuit to be a concern. Here we want to be quite exact and we give the = only for real "the same tube". Can you please just remove the word "directly" (by editing your post)? Then the very welcome objection from Roy still is true but also the hasty reader will not fall into the trap. Thank you. |
Mario Bermejo
18.Apr.07 |
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Within its maximum ratings, 6AQ5 is equivalent to 6V6, however it is not a direct replacement. You must change the tube socket since the 6AQ5 uses 7 pin miniature and also check that maximum ratings are not exceeded. A cool thing about 6AQ5 and 6V6 is that they have same filament ratings.
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Jacob Roschy
19.Apr.07 |
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Wrong Titel !
The titel [EL33/6V6] on this data sheet is wrong !
Instead of EL33 / 6V6 it should read [EL33 / 6M6] !
Any data shown in the diagram are those of the EL33 = 6M6 !
See also here.
Best Regards,
Jacob
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Marco Gilardetti
23.Apr.07 |
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I wonder why this message - if proven to be wrong - still lingers here. Seen that the original author doesn't seem to care, nobody else has the authorization level to edit and correct the title from 6V6 to 6M6? Or to delete it altogether? |
Ernst Erb
23.Apr.07 |
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Dear Marco |
Júlio Branco
24.Apr.07 |
8
Dear Members, I ask all excuse goes my previous information. I was induced in mistake by the fact of my manual of tubes to incorrect be. We won't usually check the technical dates of to manual when this it informs us that equivalence direct exists, in fact, to present it date, I have been following the instructions of the manuals and I have always been having success in my work. Then the reason goes the which I don't have the habit of checking the manuals I or in correct the. Inclusively to removes you doubt if he had or in the tube averaged EL33 changed goes the 6V6, the in the manual he felt this information, I made the experience given that had available the tube 6V6, the radio worked, what concluded that EL33 was damaged. I removed to 6V6, I acquired an EL33, being like this with the concluded work and without noticing the mistake that was to commit. I already analysed the tube 6V6 and it is 100 percent, it was not damaged. A thank you very much goes all of the information that gave me on the tubes EL33, 6M6 and 6V6, once again it I confirmed that this forum is very important, and where it I been always to learn. Best Regards Júlio Branco |
Ernst Erb
24.Apr.07 |
9
Dear Julio Thank you that you reacted on my eMail. Please always click the button "To activate e-mail notification" - so that you are automaticalle reminded if somebody answers your post. If you want to be reminded if there is no anser (to bring the thread up again) you also click *** Please remind me ...*** and you can tell the system when you want your reminder! Now: Can you please bring in the sheet again but crossing out the V in red and writing M above it in red. Plus tell a reader from which boook and on which page it is. Only by this a next one will not be catched again by this trap or try the same thing here ... It is perfectly clear that normally we can rely on such data - you did nothing wrong (except not verifying). In such cases it is also sometimes posssible that no error occurs but that does not proof that it is correct. We just try to do our best here and I thank you that you have the same opinion. I'm sure you will change the other thread too. Gracias. |
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