tuco
valued member
Posts: 18
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Post by tuco on Mar 27, 2015 20:39:56 GMT
My Ember does that, but only with my 6H6N tube. The front led and socket led flash 3 times then it starts, I thought that was normal, will it do it with 6SN7 tubes as well ?
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solderdude
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Post by solderdude on Mar 27, 2015 21:00:51 GMT
The 6H6N tube is 700-800mA where the 6SN7 tube is 600mA
It also has to do with startup heater power as well. Most likely the 6SN7 will work fine with the Ember, provided you have the right adapter.
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tuco
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Posts: 18
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Post by tuco on Mar 27, 2015 21:12:36 GMT
I ordered the adapter from Jeremy, not worried !
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solderdude
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Post by solderdude on Mar 28, 2015 8:00:25 GMT
These will work. The other adapters that are floating around won't work on the Ember. Jeremy's version has a 'selector' on the bottom that can be set to work with the Ember. This has to do with the auto heater voltage select function of the Ember.
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tuco
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Post by tuco on Mar 31, 2015 12:27:16 GMT
My adapter arrived this morning and I've been listening to my Sylvannia VT231 for a bit, I'm still amazed that simply changing a glass tube that's often or not older than i am can make such a profound difference to listening to a piece of music !
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Post by richard51 on Mar 31, 2015 13:08:26 GMT
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Post by richard51 on Mar 31, 2015 13:10:16 GMT
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solderdude
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Post by solderdude on Mar 31, 2015 17:36:17 GMT
What do you need the tube sockets for ?
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obo78
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Posts: 22
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Post by obo78 on Mar 31, 2015 20:29:24 GMT
Those are NOT adapters. They are tube sockets. Look at Jeremy's adapter and you will see that he uses one soldered to the pc board. Look at your Ember with the top off and you will see a smaller, 9 pin tube socket where you plug in your tubes. That is what you are currently looking at on ebay. Perhaps you mean socket extenders, better known as "socket savers"? Personally I wouldn't use extender on top of or under adapters - you are increasing your chance of distortion and interference. My experience with socket extenders is that they tend to introduce hiss. Here is what I am talking about (and I think what you are looking for): www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm
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Post by richard51 on Mar 31, 2015 23:43:45 GMT
Those are NOT adapters. They are tube sockets. Look at Jeremy's adapter and you will see that he uses one soldered to the pc board. Look at your Ember with the top off and you will see a smaller, 9 pin tube socket where you plug in your tubes. That is what you are currently looking at on ebay. Perhaps you mean socket extenders, better known as "socket savers"? Personally I wouldn't use extender on top of or under adapters - you are increasing your chance of distortion and interference. My experience with socket extenders is that they tend to introduce hiss. Here is what I am talking about (and I think what you are looking for): www.tubemonger.com/NOVIB_Socket_Saver_1960s_NOS_British_McMurdo_B9A_p/novib-mcmurdo.htm thank you for this clarification.....I have read in another part of this forum about socket saver .....is this a valuable purchase?
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solderdude
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Post by solderdude on Apr 1, 2015 5:08:56 GMT
When you do a lot of swapping it is valuable. With lots of swapping the socket 'wears' a bit and can eventually lead to 'noise' or the signal cutting out. In that case bending the contacts back will usually help. There is a possibility of picking up noises or hum in those things as they have relatively long wires inside. Jeremy's converter is very flat and doesn't have long wires inside. These are the cheaper ones: tubedepot.com/products/9-pin-socket-saverBut like Obo mentioned these could introduce nasties but for the price it may be worth it to simply give it a try. I have no idea if the expensive ones are 10x as good though but perhaps the contacts are better quality. Don't know though, never used any.
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Post by ronzo56 on Apr 1, 2015 15:24:45 GMT
I am currently using the Tube Depot socket savers without issue. The only noise I hear is from some tubes, but only with nothing playing and turning the volume up way higher than you would ever listen with headphones. Of course there could be some high frequency noise I am not hearing as my ears are not what they used to be above 14 kHz. I recommend you use them if you are going to try tube rolling as I had to bend the connectors back on my Ember socket due to some bent tube pins that I didn't notice until it was too late.
And as Frans said they are worth a try at the price. I think the more expensive ones have some silicon damping material inside and looks like now a NOS connector. The cheap ones can be opened and possibly modded. I bought extra's and may try putting some silicon inside. Might help with microphonic tubes. Or not.
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Post by richard51 on Apr 1, 2015 23:22:28 GMT
When you do a lot of swapping it is valuable. With lots of swapping the socket 'wears' a bit and can eventually lead to 'noise' or the signal cutting out. In that case bending the contacts back will usually help. There is a possibility of picking up noises or hum in those things as they have relatively long wires inside. Jeremy's converter is very flat and doesn't have long wires inside. These are the cheaper ones: tubedepot.com/products/9-pin-socket-saverBut like Obo mentioned these could introduce nasties but for the price it may be worth it to simply give it a try. I have no idea if the expensive ones are 10x as good though but perhaps the contacts are better quality. Don't know though, never used any. thank Solderdure......
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Post by richard51 on Apr 1, 2015 23:23:17 GMT
I am currently using the Tube Depot socket savers without issue. The only noise I hear is from some tubes, but only with nothing playing and turning the volume up way higher than you would ever listen with headphones. Of course there could be some high frequency noise I am not hearing as my ears are not what they used to be above 14 kHz. I recommend you use them if you are going to try tube rolling as I had to bend the connectors back on my Ember socket due to some bent tube pins that I didn't notice until it was too late. And as Frans said they are worth a try at the price. I think the more expensive ones have some silicon damping material inside and looks like now a NOS connector. The cheap ones can be opened and possibly modded. I bought extra's and may try putting some silicon inside. Might help with microphonic tubes. Or not. Ronzo do you have the 6ns7 adapter with this socket saver?
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obo78
valued member
Posts: 22
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Post by obo78 on Apr 2, 2015 13:51:07 GMT
I'd like to share my slightly modified Ember. I built it last year and have been using it in stock form with both my 1968 Amperex 6DJ8 Orange Globes and a 1971 GE 6DJ8 Smoked Glass. When Jeremy introduced the new aluminum chassis I jumped at the offer and then decided to make a few minor aesthetic changes and add the Supercharger and 6SN7 adapter. 1. The standoffs have been painted satin black to match the anodizing of the chassis. To me, this makes the chassis plates seem to float. 2. A new 32mm knob with black anodized center to match the chassis 3. Replacing the red power indicator LED with a 5mm blue, extended up into the chassis where it sit just behind the Supercharger. This make it much easier to see if the amp is on and produces a nice glow coming from the vent slots. 4. Painted the white ceramic portion of the 6SN7 adapter the same satin black to go with the new chassis. With the GE Smoked Glass With my new JAN CHS 6SN7GT VT231 Another angle Bob
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