The Red Type A was manufactured by Blue Mics as one of a pair of low-cost microphone bodies that served as the foundation for a system of interchangeable capsules. The Type A was a tube condenser; the Type B was a FET condenser.
The tube was an ECC88; this is a dual-triode tube. The output circuit is transformerless; it uses 3 transistors (presumably one phase-splitter and two bipolars) to produce balanced output.
As of May, 2007, pricing for the Type A was as follows:
$1345 for the Type A body, no capsule
$649 for most of the Red capsules (R0-R7, not R4)
$849 for the R4, aka “The Big Omni,” described as a “small diaphragm sphere pressure omni” capsule
The Red mic line was discontinued in 2008, and rebranded by Blue as the Stage 1 and Stage 2; the capsules are now called Bottle Rockets.
Blue Microphones B0 Large Diaphragm Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20-20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B1 Small Diaphragm Bottlecap
18mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B2 Figure-of-8 Lg Diaphragm Bottlecap
24mm large diaphragm Bidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B3 Cardioid Mid-Size Diaphragm Bottlecap
22mm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B4 Perspex Sphere Pressure Omni Small Diaphragm Bottlecap
18mm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $849 | Still In Production
Blue Microphones B5 Pressure Omni Large Diaphragm Bottlecap
25mm large diaphragm Omnidirectional capsule
Sensitivity: mV/Pa
Freq. Resp.: 35 - 20,000 Hz
MSRP: $649 | Still In Production
Blue Microphones B6 Cardioid Large Diaphragm Dual Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 18,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B7 Cardioid Large Diaphragm Single Backplate Bottlecap
24mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $649.95 | Still In Production
Blue Microphones B8 Edge-Terminated Large-diaphragm
25mm large diaphragm Cardioid capsule
Sensitivity: mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $595 | Still In Production
Violet Design Ltd. VIN12
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN26
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN27
27mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 22 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN44
26mm large diaphragm Bidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 28 - 10,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN47
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN55
26mm large diaphragm Omnidirectional capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 24 - 20,000 Hz
MSRP: $1027 | Still In Production
Violet Design Ltd. VIN67
26mm large diaphragm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production
Violet Design Ltd. VIN89
22mm Cardioid capsule
Sensitivity: n/a mV/Pa
Freq. Resp.: 20 - 20,000 Hz
MSRP: $1068 | Still In Production