SKU: 34216338286

DYNACO ST-70 6GH8A / 6GH8 COMPLETE STUFFED PC-3 DRIVER BOARD (Retro Phenolic Look) WITH TUBES (NOS Platinum matched pair of 6GH8A EI Philips)

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Description

DYNACO ST-70 6GH8A / 6GH8 COMPLETE STUFFED PC-3 DRIVER BOARD (Retro Phenolic Look) WITH TUBES (NOS Platinum matched pair of 6GH8A EI Philips)DYNACO ST 70 6GH8A 6GH8 COMPLETE STUFFED PC 3 DRIVER BOARD (Retro Phenolic Look) WITH TUBES (NOS Platinum matched pair of 6GH8A EI Philips) This is Dynaco ST 70 driver board PC 3. Its developed and designed to be drop in replacement and it follows original wire hole layout, but its modified to use widely available 6GH8 6GH8A 6KD8 ECF82 tubes instead of obsolete and hard to find 7199 tubes. You can find many quality NOS tubes of any of these types for

DYNACO ST-70 6GH8A / 6GH8 COMPLETE STUFFED PC-3 DRIVER BOARD (Retro Phenolic Look) WITH TUBES (NOS Platinum matched pair of 6GH8A EI Philips)

 

This is Dynaco ST-70 driver board PC-3. It’s developed and designed to be drop in replacement and it follows original wire hole layout, but it’s modified to use widely available 6GH8 / 6GH8A / 6KD8 / ECF82 tubes instead of obsolete and hard to find 7199 tubes.  You can find many quality NOS tubes of any of these types for normal prices and you can enjoy tube rolling with this driver board.  It’s also modified to accept modern and NOS coupling capacitors of various types and dimensions.

It’s made of hi quality epoxy fiberglass FR4 material 1.6mm (0.062’) thickness, it’s single layer board with solder rings at the bottom layer.  Solder reflow process is done at the bottom layer and blue solder mask is applied at the bottom side. All connections and elements on the board are silkscreened with original DYNACO numbering, so you can use original DYNACO ST-70 manual to complete it or we can provide it.

This is complete board! One brand new PCB, ceramic sockets, Hi Quality MKP coupling capacitors, silver mica capacitors, metal film, metal oxide and carbon oxide resistors and one NOS matched pair (two tubes) of 6GH8A EI Philips. They are made back in 80s in EI tube factory, under Philips licence and with some of genuine Philips materials. They were intended for export, so they have passed strict quality control. Every pair is selected from the same batch with same date codes and tubes are real platinum matched pairs, tested on my calibrated METRIX U61-B tester.

All coupling capacitors are high quality MKP Metallized Polypropylene (PP) Capacitors. 120nF are used vs original 100nF, for a bit better bass response. Also silver mica capacitors are used, metal film, metal oxide and carbon resistors for good performance and lowest hum.

Shipping Notes
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Exchange/Return Notes
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SKU: 34216338286

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4.7 ★★★★★
Based on 11 reviews
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Verified Purchase
Brooklyn Lawlor
San Leandro, US
★★★★★ 5
So easy a caveman can do it
Size: 32.8ft, Size: 32.8ft
Installation was easy and not complicated at all. The app lets you decide the mood you want the house in or wherever you choose to install it. I placed it under my island in the kitchen. It is perfection. No remote control. Very durable. Super bright. You can even turn it down a few notches but that's through the app with easy follow instructions.
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Reviewed in the United States on May 6, 2026
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Verified Purchase
Ariacella DelGrande
Waukegan, US
★★★★★ 4
Work just fine as long as you’re careful!
Size: 16.4ft
Work just fine as long as you’re careful! I don’t often write reviews, but I thought it could be helpful information since I’ve been through a few sets of these lights. Pros: - Good, easy to use app - Bright, responsive lights - Great customer service - Low price, especially for the length Cons: - Fairly easy to tear/break - Cannot use solderless connectors to navigate corners (to my understanding) - Hit or miss functionality - Not Alexa compatible (which is stated in description) I’ve purchased three sets of these lights, ultimately they are good you just have to be careful. 1. The first one worked ok for a while, but they stopped working, presumably, after my cat bit part of it 2. I ordered another set since they had been working fine until my cat got to it. When I received this one, it was clearly not programmed correctly or there was some other technical issue with it as it would not respond to the app, though the app would say it was connected and would flash random colors in random different sections. I contacted customer service who walked me through some troubleshooting and ultimately sent me a new set, which arrived very quickly, which was greatly appreciated. 3. The third set arrived and seemed to function just fine. After installing them in the same way that I had installed the first set of lights, they soon ended up tearing at a turn point (I used their suggested technique for navigating corners) and no longer worked past that section. I tried to find any solderless connectors that I could use (now that I had at least two sets of partially working lights) however I could not find any that would be compatible (which makes sense given these are RBGIC lights and Govee themselves also stated this to be the case) Ultimately, I don’t think I will buy another set and will probably just spend a little extra for a different set of light strips, likely from the same brand since a different model I’ve used before (TV backlights) has worked well and is Alexa compatible. Plus, Govee’s app is easy to use and has a nice UI.
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Reviewed in the United States on September 3, 2025
K
Verified Purchase
Kadin Leach
Louisville, US
★★★★★ 5
High Quality Product, especially for the low price point
Size: 16.4ft
Very High Quality Strip Lights that can easily be adapted to any environment, fitting in even very small areas. The adhesive material on the back provides strong adhesion to most surfaces, with some common exceptions. They are more than stable in the vast majority of environments, and the remote control, either the provided one or the digital app works extremely easily to provide a good experience. The colors are vibrant and bright and can be controlled or dimmed easily.
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Reviewed in the United States on April 16, 2026
T
Verified Purchase
timbo
Dallas, US
★★★★★ 5
Nice n bright
Size: 32.8ft
Lotta cool colors! Good adhesive. Works as it should. Time will tell for durability but 6months in zero flicker or problems with app controls
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Reviewed in the United States on May 14, 2026
R
Verified Purchase
ryan w
West Palm Beach, US
★★★★★ 5
Easy to put up and decent quality
Size: 16.4ft
These were actually pretty easy to install - and the cord to plug them in was really long, which is appreciated. I do wish they had more colors to pick from but it’s a great deal for the price.
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Reviewed in the United States on May 30, 2026

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