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| A
combination of the F-100T pulse preamplifier and a low level D.C.
current amplifier operating concurrently. The purpose is to use either
channel depending on the application, or to extend the useful range of
the F-100T by several decades by switching from pulse counting to D.C.
current measurement. The Combo - 100 preamplifier amplifies minute
pulses from photomultiplier tubes and electron multipliers to provide
simultaneous pulse and D.C. outputs. The high level standard output
signals are compatible with most rate meters, pulse counters, and X-Y
recorders without any additional signal processing. The pulse
preamplifier is the sensitive, popular F-100T type with a standard TTL
output and a 50 MHz maximum pulse repetition rate. |
 |
|
Pulse Preamplifier |
DC Current Preamplifier |
|
| Sensitivity | 160µV | 1V/100pA | |
| Max. Repetition Rate | 50 MHz | ||
| Input Noise Level | 10µV | ||
| Pulse Pair Resolution | 20ns | ||
| Min. Output Pulse Width | 10ns | ||
| Output | TTL | DC Voltage | |
| Input Range | 100pA to 10µA | ||
| Frequency Response at 10µA | 400 KHz | ||
| Output Range | 0 to 2VDC | ||
| Output Impedance | 50 ohm | 100 ohm | |
| Power Requirement | +8VDC to +15VDC and -8VDC T0 -15VDC | ||
| Input Connector | BNC (One connector for both preamplifiers) | ||
| Output Connector | BNC and 9 pin Mini D | 9 pin Mini D | |
| Power Connector | 9 pin Mini D | 9 pin Mini D | |
| Physical Size | 2.5"W x 6"L X 2.8"H | ||
| Note: There is one 9 pin Mini D connector for the DC power, analog output, and second TTL output. | |||
| Domestic | International | |
| Combo-100 | $1,045.00 | $1,306.00 |
| Available options: | ||
| Linear amplifier output | $80.00 | $100.00 |
| remote threshold control | $102.00 | $127.00 |
| remote threshold monitor | $70.00 | $87.00 |