What type of valves (tubes) do TL Audio use?
We use only two types of valve – one is the ECC83 dual triode valve (also known as the 12AX7) and the other is the EF86 pentode valve (also known as the 6267). The EF86 is used only in the preamp stage of the PA-1 and VP-1 models, while every other model uses the ECC83/12AX7 only. We currently use the following brands, and recommend these as replacements: Sovtek 12AX7WA Sovtek EF86 You can find more info at www.sovtek.com You can in theory use any brand of EF86 or 12AX7WA, but you may find subtle difference in audio quality (and price) between various brands. We have found the Sovtek brand to offer a good balance of quality and affordability.