Keep it cool
I used this topside to help to keep my three tube RIAA phono amplifier cool. (EAR834-clone from eBay) That works really well. I think because this aluminium top has far more openings than the original steel topplate, and also the aluminium spreads the heat from the three ECC83 tubes better.
This review has been posted for HIFI 2000 Perforated Aluminum Cover for GX348-GX388 (Black) I used this topside to help to keep my three tube RIAA phono amplifier cool. (EAR834-clone from eBay) That works really well. I think because this aluminium top has far more openings than the original steel topplate, and also the aluminium spreads the heat from the three ECC83 tubes better.