Product Description | Year Released | List Price | Average Price | Pricing Trend | Number Tracked | Resale Popularity | 12AX7 | | | $58 | ![](/graphics/TrendFlat.gif) | 222 | ![](/graphics/Popular3.gif) | 6BQ5 | | | $134 | ![](/graphics/TrendDown.gif) | 44 | ![](/graphics/Popular6.gif) | D19 Microphone | | | $350 | ![](/graphics/TrendDown.gif) | 55 | ![](/graphics/Popular3.gif) | N624 | | | $142 | ![](/graphics/TrendDown.gif) | 18 | ![](/graphics/Popular1.gif) | TD20 | | | $51 | ![](/graphics/TrendFlat.gif) | 62 | ![](/graphics/Popular1.gif) | TD26 Microphone | | | $60 | ![](/graphics/TrendFlat.gif) | 28 | ![](/graphics/Popular1.gif) | U373A Compressor/Limiter | | | $492 | ![](/graphics/TrendUp.gif) | 33 | ![](/graphics/Popular1.gif) | U374A | | | $136 | ![](/graphics/TrendFlat.gif) | 51 | ![](/graphics/Popular1.gif) | U47 Microphone | | | $4,063 | ![](/graphics/TrendUp.gif) | 52 | ![](/graphics/Popular4.gif) | V372D | | | $241 | ![](/graphics/TrendDown.gif) | 29 | ![](/graphics/Popular2.gif) | V376 PreAmp | | | $331 | ![](/graphics/TrendDown.gif) | 34 | ![](/graphics/Popular5.gif) | V672 PreAmp | | | $240 | ![](/graphics/TrendUp.gif) | 106 | ![](/graphics/Popular2.gif) | V676A | | | $297 | ![](/graphics/TrendDown.gif) | 53 | ![](/graphics/Popular4.gif) | V72 Tube PreAmp | | | $588 | ![](/graphics/TrendDown.gif) | 127 | ![](/graphics/Popular3.gif) | V72A Tube PreAmp | | | $620 | ![](/graphics/TrendUp.gif) | 32 | ![](/graphics/Popular2.gif) | W695 | | | $182 | ![](/graphics/TrendUp.gif) | 32 | ![](/graphics/Popular2.gif) |
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