st-70
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Help Needed with a New VTA-70
Hello Fellow AK'ers: Well I finally went out and got myself a tube amp! I have never heard one before and the curiosity got the better of me. Had my heart set on an Dyna ST-35 but this VTA-70 came up and the price was right... Looking for some opinions and advice prior to powering it up and...- CoolOhm
- Thread
- dynaco st-70 st70 vta-70 vta70
- Replies: 15
- Forum: Tube Audio
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J
Dynakit ST70 Complete restoration Project
This is the beginning of what is the second phase of a greater project going back several years, that being the initial salvaging of this amplifier after being found stored in a Florida attic for over 40 years. For this effort a complete video series exists where the amplifier was brought to a...- JRUBIN
- Thread
- dyna dynaco dynaco st-70 dynakit st70 restoration st-70 st70
- Replies: 15
- Forum: Tube Audio
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Is anyone having any trouble / luck with Triode, USA recently?
I'm finally scaring up some time to get back to my project queue, and I realized that I never received the 4 Dynaco ST-70 chokes I ordered from Triode, USA back in January. I then realized that I never received a separate ST-70 choke I ordered a few months prior to that for a different project...- thorpej
- Thread
- dyanco st-70 triode
- Replies: 13
- Forum: Tube Audio
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J
DYNA ST-70 Harmonic Distortion Testing using all 1960's Heathkit Tube Technology
In this video I will demonstrate harmonic distortion testing of my Dynaco ST 70 amplifier using all Heathkit tube gear from the 50's and 60's. This demonstration will show the THD produced from this amplifier at 2KHZ using three different power inputs. The equipment used includes: Heathkit...- JRUBIN
- Thread
- dyna dynaco heathkit ig-72 ig72 im-12 im12 st-70 st70
- Replies: 15
- Forum: Tube Audio
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A few more DIY Tube amp Questions
After a bit of pondering after my last post, I've got two designs in mind. I'd prefer not to spend the $250 on a pair of ST-70 output transformers. I'd like to keep the output transformers under 200. I'm trying to decide between building an "ST-70" with Edcor transformers (probably have to be a... -
ST-70 Custom Died - Where To Start?
Perhaps I just found why I shouldn't own a tube amp. Music was playing, at low-ish volume. My wife was standing beside the amp and I was looking at her, in conversation. There was no flash, no pop or buzz or noise of any kind. No odors. The music quit playing, the tubes faded. Won't fire...- musichal
- Thread
- custom dynaco musichal st-70 tube amp
- Replies: 187
- Forum: Tube Audio
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Dynaco ST-70 / Mark III / Mark IV - Which board to accept 12ax7?
I came in possession of a Dynaco ST-70, a Mark IV and two Mark III. I am considering modding these amps, currently using their stock boards, with input boards which would allow me to use 12ax7 and 12au7. I have in fact a good collection of old ones of those and I would like to use them. I...- gvocale
- Thread
- dynaco poseidon st-70
- Replies: 18
- Forum: Tube Audio
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Marantz 2245 traded for Eico ST-40 a fair trade?
I received a call from a friend in Ottawa, Canada, who asked me what I thought about the subject line. He has a small collection of audio gear, and is thinking about swapping his Marantz 2245 in excellent condition, for an Eico ST-40, which looks to be in good shape. He likes both SS and hollow...- Lower Tones
- Thread
- 2245 eico marantz solid state st-40 st-70 tube tubes tubestereo
- Replies: 5
- Forum: Dollars and Sense
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Room: AK Members Erkenbrand42 & Tube-it
ST70 and Passive- tube-it
- Media item
- st-70
- Comments: 0
- Category: AK Fest 2012
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