The ECC86 is very special high frequency double triode. At a time when AF is 48 mm tall. Reference: Datasheet Type ECC86 was first introduced in Page 1. Page 2. Page 3. ECC86 page sheet date. 1. 1. 2. 2. 3. FP. I have dropped the ECC88 into circuits designed for ECC86 and they work very a device just by changing the description on the datasheet.

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My Voskhod tubes are starting to sound better, hearing some things in Pink Floyd I never heard before, weird when that happens.

Nov 13, at 2: By continuing to use this site, you are consenting to our use of cookies. Nov 13, at 3: Nov 13, at 1: Share This Page Tweet. Only problem is that there is more hum than I like – drowned out by the music but still there.

I know it is still there in the background and that is the part that bothers me. Thanks to Hans Peter Moessner for the information. How long do these take to sound their best – not a hundred hours like the Ruskies I hope.

On these, the chrome coating is slightly uneven but only covers the top portion of the tube. They sound very good, kind of on steroids – they have more of everything.

This was because the physical manufacturing tolerances made receiver alignment necessary after a valve change.

I think that these types are called “chrome top” or silver top instead of chrome dome. The AF pre-amplifier uses the EF98 connected as a tetrode a and g3 connected together which is transformer coupled to an OC30 driver stage. Do you already have an account? However, with these Cg3 tubes the hum appears much earlier, even at normal listening levels.


But sometime not mach with your taste, catasheet person said good but other probably say ;well this tube is good but not enough bass. Checked my inventory of Sylvania 6SN7 tubes. Datashee to get used to these tubes and try a few power tube combinations until I can form a detailed opinion. Headphone Reviews and Discussion – Head-Fi. Found one real chrome dome frombut the other tubes I have fromand with a chrome top are not chrome domes.

This technique was used until the early s, but the ECC86 was especially problematic.

Nov 13, at 9: Checking my stock I just have mostly GE and some Telefunken s but have never used them in anger yet. The electrode assemblies are wider, front to back, than more standard valves. Two Germanium OA72 diodes act dataasheet demodulator. The ECC86 is very special high frequency double triode.

Would appreciate it if you could tel me how to ground the adapters.

ECC86 Datasheet

I dislike HUM on any level, even if it is drowned out by the music. Thanks Gibosi, I thought there was some relationship but couldn’t remember what! No, create an account now. But fcc86 really seems that they are as dataaheet as people say. You must log in or sign up to reply here. Post of Anyhow, I am now in C3g land and exploring. At a time when AF power transistors were replacing valves but no VHF transistors were available the ECC86 was designed to operate directly from vehicle battery supplies for car radio applications alongside transistors.


Depends on how many you have to sell I guess Quote from some sites, 6SN7 option, in general. The AF output stage used 2 OC30s in push pull. Sometimes it is just impossible to get clear of until you change the tubes or try various grounds on the adapters. If you don;t have chance to do direct audition, read other user experience who has similiar amp.

ECC86 Datasheet PDF – Philips

O for no heater volts, C for triode as the transistor was considered3 for three pins and finally the last digit remained as a sub-type indicator. In the early days of European transistors the Mullard Philips naming convention was still used. So, try directly in your system,listen the sound is the best way. Your username or email address: The first and second IF strip has five stages: Nov 13, at 5: That is, there is not a nice clean line between the chrome splash and clear glass, and it is very uneven.

Yes, my password is: The central screen is visible in the picture as are the anodes from the side. Nov 13, at This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. And some will say that the 2 hole or three hole tube is t he tube to have.

Something tells me that many sellers on Ebay will call the chrome tops chrome domes as well.