This is a killer Gibson GA-20, it has just been serviced and sounds excellent. The amp is original in all the right places, original speaker, original transformers and it is still using the original tubes. Amp has just had all the main electroltyic caps replaced, but still retains the original signal caps. Amp has had a 3 prong cord added and had all the controls & jacks cleaned. This is the best era for these amps as they have 12AY7 pre amp tubes and 6V6 power tubes, a great combo. Original lower wattage Jensen P12R is still in good working condition and sounds great.